diff --git a/blight-editor/src/main/java/de/blight/editor/EditorApp.java b/blight-editor/src/main/java/de/blight/editor/EditorApp.java
index 8587ad0..f754c73 100644
--- a/blight-editor/src/main/java/de/blight/editor/EditorApp.java
+++ b/blight-editor/src/main/java/de/blight/editor/EditorApp.java
@@ -269,6 +269,22 @@ public class EditorApp extends Application {
                     return;
                 }
             }
+            // Tab: Sub-Modus innerhalb des aktiven Tools cyclen
+            if (e.getCode() == KeyCode.TAB && "world".equals(currentTool)
+                    && !e.isAltDown() && !e.isControlDown()
+                    && !(scene.getFocusOwner() instanceof javafx.scene.control.TextInputControl)) {
+                e.consume();
+                cycleToolSubMode();
+                return;
+            }
+            // Numpad +/-: Höhenparameter des aktiven Tools anpassen
+            if ((e.getCode() == KeyCode.ADD || e.getCode() == KeyCode.SUBTRACT)
+                    && "world".equals(currentTool)
+                    && !(scene.getFocusOwner() instanceof javafx.scene.control.TextInputControl)) {
+                e.consume();
+                adjustHeightParam(e.getCode() == KeyCode.ADD ? +1 : -1);
+                return;
+            }
             handleKeyPress(e.getCode(), true);
         });
         scene.addEventFilter(javafx.scene.input.KeyEvent.KEY_RELEASED, e -> handleKeyPress(e.getCode(), false));
@@ -508,6 +524,12 @@ public class EditorApp extends Application {
                     terrainController.showToolParameters(toolPanel, input.activeTool);
                 }
 
+                // Pinsel-Parameter via Alt/Shift+Scroll geändert → Slider aktualisieren
+                if (input.brushParamsChanged && "world".equals(currentTool)) {
+                    input.brushParamsChanged = false;
+                    terrainController.refreshCurrentPanel();
+                }
+
                 // Neues JME-Image nach Viewport-Resize übernehmen
                 javafx.scene.image.WritableImage newImg = input.resizedImage.getAndSet(null);
                 if (newImg != null) {
@@ -1007,6 +1029,38 @@ public class EditorApp extends Application {
         }
     }
 
+    // ── Höhenparameter per Numpad +/- anpassen ───────────────────────────────
+
+    private void adjustHeightParam(int direction) {
+        de.blight.editor.tool.EditorTool tool = input.activeTool;
+        if (tool == null) return;
+        de.blight.editor.tool.ToolParameter hp = tool.getHeightParam();
+        if (hp == null) return;
+        double step = input.ctrlHeld ? 10.0 : (input.shiftHeld ? 0.1 : 1.0);
+        hp.setValue(hp.getValue() + direction * step);
+        terrainController.refreshCurrentPanel();
+    }
+
+    // ── Sub-Tool / Modus-Cycle (Tab) ─────────────────────────────────────────
+
+    private void cycleToolSubMode() {
+        de.blight.editor.tool.EditorTool tool = input.activeTool;
+        if (tool == null) return;
+
+        // Gras-Kontext: zwischen den drei Gras-Sub-Tools wechseln
+        if (tool == input.grassTool || tool == input.grassVertexTool || tool == input.terrainGrassTool) {
+            grassController.cycleSubTool();
+            return;
+        }
+
+        // Alle anderen Tools: ersten ChoiceToolParameter cyclen
+        java.util.List<de.blight.editor.tool.ChoiceToolParameter> choices = tool.getChoiceParameters();
+        if (choices.isEmpty()) return;
+        de.blight.editor.tool.ChoiceToolParameter param = choices.get(0);
+        int next = (param.getSelectedIndex() + 1) % param.getChoices().length;
+        param.setSelectedIndex(next);
+        terrainController.showToolParameters(toolPanel, tool);
+    }
 
     // ── Animations-Vorschau-Werkzeug ─────────────────────────────────────────
 
diff --git a/blight-editor/src/main/java/de/blight/editor/SharedInput.java b/blight-editor/src/main/java/de/blight/editor/SharedInput.java
index 894937f..e626a1c 100644
--- a/blight-editor/src/main/java/de/blight/editor/SharedInput.java
+++ b/blight-editor/src/main/java/de/blight/editor/SharedInput.java
@@ -68,6 +68,10 @@ public class SharedInput {
     public volatile boolean ctrlHeld;
     public volatile boolean altHeld;
 
+    // ── Pinsel-Scroll (Alt+Rad = Radius, Shift+Rad = Stärke) ─────────────────
+    /** Gesetzt von ViewportController wenn Pinselparameter per Scroll geändert wurden; EditorApp liest + resettet. */
+    public volatile boolean brushParamsChanged = false;
+
     // ── Debug-Toggle: Strg+F8 schaltet Raw-Texture-Modus (kein Lighting) ─────
     public volatile boolean debugNoLightToggle;
 
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/EditorTool.java b/blight-editor/src/main/java/de/blight/editor/tool/EditorTool.java
index ff58b76..d662ea6 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/EditorTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/EditorTool.java
@@ -18,4 +18,13 @@ public abstract class EditorTool {
     public List<ChoiceToolParameter> getChoiceParameters() {
         return List.of();
     }
+
+    /** Pinselradius-Parameter für Alt+Scroll-Shortcut. null wenn kein Radius vorhanden. */
+    public ToolParameter getBrushRadius() { return null; }
+
+    /** Pinselstärke-Parameter für Shift+Scroll-Shortcut. null wenn keine Stärke vorhanden. */
+    public ToolParameter getBrushStrength() { return null; }
+
+    /** Höhen-Parameter für +/−-Stepper (1m/0,1m-Schritte). null wenn nicht vorhanden. */
+    public ToolParameter getHeightParam() { return null; }
 }
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/GrassTool.java b/blight-editor/src/main/java/de/blight/editor/tool/GrassTool.java
index 69ff675..b40072a 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/GrassTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/GrassTool.java
@@ -16,6 +16,9 @@ public class GrassTool extends EditorTool {
     @Override
     public List<ChoiceToolParameter> getChoiceParameters() { return List.of(); }
 
+    @Override public ToolParameter getBrushRadius()  { return brushRadius; }
+    @Override public ToolParameter getHeightParam()  { return grassHeight; }
+
     @Override
     public List<ToolParameter> getParameters() { return List.of(brushRadius, grassHeight, density); }
 }
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/GrassVertexTool.java b/blight-editor/src/main/java/de/blight/editor/tool/GrassVertexTool.java
index b140a68..2f42d99 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/GrassVertexTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/GrassVertexTool.java
@@ -18,6 +18,9 @@ public class GrassVertexTool extends EditorTool {
     @Override
     public List<ChoiceToolParameter> getChoiceParameters() { return List.of(); }
 
+    @Override public ToolParameter getBrushRadius()  { return brushRadius; }
+    @Override public ToolParameter getHeightParam()  { return bladeHeight; }
+
     @Override
     public List<ToolParameter> getParameters() { return List.of(brushRadius, bladeHeight, density, dryness, uniformity, seedDensity); }
 }
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/HeightTool.java b/blight-editor/src/main/java/de/blight/editor/tool/HeightTool.java
index b283aeb..cbd5334 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/HeightTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/HeightTool.java
@@ -38,6 +38,10 @@ public class HeightTool extends EditorTool {
         return List.of(mode);
     }
 
+    @Override public ToolParameter getBrushRadius()   { return brushRadius; }
+    @Override public ToolParameter getBrushStrength() { return brushStrength; }
+    @Override public ToolParameter getHeightParam()   { return plateauHeight; }
+
     @Override
     public List<ToolParameter> getParameters() {
         return List.of(brushRadius, brushStrength, plateauHeight);
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/HoleTool.java b/blight-editor/src/main/java/de/blight/editor/tool/HoleTool.java
index 92bdae4..103e2a4 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/HoleTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/HoleTool.java
@@ -27,6 +27,8 @@ public class HoleTool extends EditorTool {
         return List.of(mode);
     }
 
+    @Override public ToolParameter getBrushRadius() { return brushRadius; }
+
     @Override
     public List<ToolParameter> getParameters() {
         return List.of(brushRadius);
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/SculptMeshTool.java b/blight-editor/src/main/java/de/blight/editor/tool/SculptMeshTool.java
index 9664990..4bd0b38 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/SculptMeshTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/SculptMeshTool.java
@@ -32,6 +32,9 @@ public class SculptMeshTool extends EditorTool {
     @Override
     public List<ChoiceToolParameter> getChoiceParameters() { return List.of(mode); }
 
+    @Override public ToolParameter getBrushRadius()   { return brushRadius; }
+    @Override public ToolParameter getBrushStrength() { return brushStrength; }
+
     @Override
     public List<ToolParameter> getParameters() { return List.of(brushRadius, brushStrength); }
 }
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/StoneTool.java b/blight-editor/src/main/java/de/blight/editor/tool/StoneTool.java
index 8177bca..10e3ef2 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/StoneTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/StoneTool.java
@@ -17,6 +17,8 @@ public class StoneTool extends EditorTool {
 
     @Override public List<ChoiceToolParameter> getChoiceParameters() { return List.of(); }
 
+    @Override public ToolParameter getBrushRadius() { return brushRadius; }
+
     @Override public List<ToolParameter> getParameters() {
         return List.of(brushRadius, minSize, maxSize, density);
     }
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/TerrainColorGrassTool.java b/blight-editor/src/main/java/de/blight/editor/tool/TerrainColorGrassTool.java
index b1abe64..d99c837 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/TerrainColorGrassTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/TerrainColorGrassTool.java
@@ -14,6 +14,9 @@ public class TerrainColorGrassTool extends EditorTool {
 
     @Override public List<ChoiceToolParameter> getChoiceParameters() { return List.of(); }
 
+    @Override public ToolParameter getBrushRadius()  { return brushRadius; }
+    @Override public ToolParameter getHeightParam()  { return bladeHeight; }
+
     @Override public List<ToolParameter> getParameters() {
         return List.of(brushRadius, bladeHeight, density, uniformity, seedDensity);
     }
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/TextureTool.java b/blight-editor/src/main/java/de/blight/editor/tool/TextureTool.java
index 949fd9d..fe21e39 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/TextureTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/TextureTool.java
@@ -25,6 +25,9 @@ public class TextureTool extends EditorTool {
     @Override
     public List<ChoiceToolParameter> getChoiceParameters() { return List.of(textureIndex); }
 
+    @Override public ToolParameter getBrushRadius()   { return brushRadius; }
+    @Override public ToolParameter getBrushStrength() { return brushStrength; }
+
     @Override
     public List<ToolParameter> getParameters() { return List.of(brushRadius, brushStrength); }
 }
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/UpperHeightTool.java b/blight-editor/src/main/java/de/blight/editor/tool/UpperHeightTool.java
index c594727..d07492a 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/UpperHeightTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/UpperHeightTool.java
@@ -30,6 +30,9 @@ public class UpperHeightTool extends EditorTool {
         return List.of(mode);
     }
 
+    @Override public ToolParameter getBrushRadius()   { return brushRadius; }
+    @Override public ToolParameter getBrushStrength() { return brushStrength; }
+
     @Override
     public List<ToolParameter> getParameters() {
         return List.of(brushRadius, brushStrength);
diff --git a/blight-editor/src/main/java/de/blight/editor/tool/VoxelTool.java b/blight-editor/src/main/java/de/blight/editor/tool/VoxelTool.java
index 55471d5..672637e 100644
--- a/blight-editor/src/main/java/de/blight/editor/tool/VoxelTool.java
+++ b/blight-editor/src/main/java/de/blight/editor/tool/VoxelTool.java
@@ -59,6 +59,10 @@ public class VoxelTool extends EditorTool {
         return List.of(mode);
     }
 
+    @Override public ToolParameter getBrushRadius()   { return brushRadius; }
+    @Override public ToolParameter getBrushStrength() { return brushStrength; }
+    @Override public ToolParameter getHeightParam()   { return plateauTarget; }
+
     @Override
     public List<ToolParameter> getParameters() {
         return List.of(brushRadius, brushStrength, plateauTarget);
diff --git a/blight-editor/src/main/java/de/blight/editor/toolset/grass/GrassController.java b/blight-editor/src/main/java/de/blight/editor/toolset/grass/GrassController.java
index 50b1142..922f046 100644
--- a/blight-editor/src/main/java/de/blight/editor/toolset/grass/GrassController.java
+++ b/blight-editor/src/main/java/de/blight/editor/toolset/grass/GrassController.java
@@ -24,6 +24,10 @@ public class GrassController {
     private final BiConsumer<VBox, EditorTool>       showToolParams;
     private final Function<Path, String>             normalMapLoader;
 
+    // Sub-Tool-Cycle: gesetzt in buildPanel(), genutzt von cycleSubTool()
+    private ToggleButton subTexBtn, subVertBtn, subTerrainBtn;
+    private Runnable     activateTex, activateVert, activateTerrain;
+
     public GrassController(ToolContext ctx,
                            ImageView viewport,
                            BiConsumer<VBox, EditorTool> showToolParams,
@@ -48,21 +52,21 @@ public class GrassController {
         title.setStyle("-fx-font-weight: bold; -fx-font-size: 13; -fx-text-fill: #111;");
         panel.getChildren().addAll(title, new Separator());
 
-        ToggleButton grassSubTexBtn     = new ToggleButton(":: Textur");
-        ToggleButton grassSubVertBtn    = new ToggleButton("|| Vertex");
-        ToggleButton grassSubTerrainBtn = new ToggleButton("~~ Terrain");
-        grassSubTexBtn.setMaxWidth(Double.MAX_VALUE);
-        grassSubVertBtn.setMaxWidth(Double.MAX_VALUE);
-        grassSubTerrainBtn.setMaxWidth(Double.MAX_VALUE);
+        subTexBtn     = new ToggleButton(":: Textur");
+        subVertBtn    = new ToggleButton("|| Vertex");
+        subTerrainBtn = new ToggleButton("~~ Terrain");
+        subTexBtn.setMaxWidth(Double.MAX_VALUE);
+        subVertBtn.setMaxWidth(Double.MAX_VALUE);
+        subTerrainBtn.setMaxWidth(Double.MAX_VALUE);
         ToggleGroup subGroup = new ToggleGroup();
-        grassSubTexBtn.setToggleGroup(subGroup);
-        grassSubVertBtn.setToggleGroup(subGroup);
-        grassSubTerrainBtn.setToggleGroup(subGroup);
+        subTexBtn.setToggleGroup(subGroup);
+        subVertBtn.setToggleGroup(subGroup);
+        subTerrainBtn.setToggleGroup(subGroup);
         subGroup.selectedToggleProperty().addListener((obs, o, n) -> { if (n == null) subGroup.selectToggle(o); });
-        HBox subRow = new HBox(4, grassSubTexBtn, grassSubVertBtn, grassSubTerrainBtn);
-        HBox.setHgrow(grassSubTexBtn,     Priority.ALWAYS);
-        HBox.setHgrow(grassSubVertBtn,    Priority.ALWAYS);
-        HBox.setHgrow(grassSubTerrainBtn, Priority.ALWAYS);
+        HBox subRow = new HBox(4, subTexBtn, subVertBtn, subTerrainBtn);
+        HBox.setHgrow(subTexBtn,     Priority.ALWAYS);
+        HBox.setHgrow(subVertBtn,    Priority.ALWAYS);
+        HBox.setHgrow(subTerrainBtn, Priority.ALWAYS);
         panel.getChildren().add(subRow);
 
         VBox paramsBox = new VBox(10);
@@ -126,7 +130,7 @@ public class GrassController {
                 new Label("Vertrocknet:"), dryPicker);
         panel.getChildren().add(colorSection);
 
-        Runnable activateTex = () -> {
+        activateTex = () -> {
             ctx.input().activeLayer = 3;
             ctx.input().activeTool  = ctx.input().grassTool;
             paramsBox.getChildren().clear();
@@ -136,7 +140,7 @@ public class GrassController {
             colorSection.setVisible(true);
             colorSection.setManaged(true);
         };
-        Runnable activateVert = () -> {
+        activateVert = () -> {
             ctx.input().activeLayer = SharedInput.LAYER_GRASS_VERTEX;
             ctx.input().activeTool  = ctx.input().grassVertexTool;
             paramsBox.getChildren().clear();
@@ -146,7 +150,7 @@ public class GrassController {
             colorSection.setVisible(true);
             colorSection.setManaged(true);
         };
-        Runnable activateTerrain = () -> {
+        activateTerrain = () -> {
             ctx.input().activeLayer = SharedInput.LAYER_TERRAIN_GRASS;
             ctx.input().activeTool  = ctx.input().terrainGrassTool;
             paramsBox.getChildren().clear();
@@ -157,24 +161,40 @@ public class GrassController {
             colorSection.setManaged(false);
         };
 
-        grassSubTexBtn.setOnAction(e     -> activateTex.run());
-        grassSubVertBtn.setOnAction(e    -> activateVert.run());
-        grassSubTerrainBtn.setOnAction(e -> activateTerrain.run());
+        subTexBtn.setOnAction(e     -> activateTex.run());
+        subVertBtn.setOnAction(e    -> activateVert.run());
+        subTerrainBtn.setOnAction(e -> activateTerrain.run());
 
         if (ctx.input().activeLayer == SharedInput.LAYER_GRASS_VERTEX) {
-            grassSubVertBtn.setSelected(true);
+            subVertBtn.setSelected(true);
             activateVert.run();
         } else if (ctx.input().activeLayer == SharedInput.LAYER_TERRAIN_GRASS) {
-            grassSubTerrainBtn.setSelected(true);
+            subTerrainBtn.setSelected(true);
             activateTerrain.run();
         } else {
-            grassSubTexBtn.setSelected(true);
+            subTexBtn.setSelected(true);
             activateTex.run();
         }
 
         return panel;
     }
 
+    /** Wechselt zum nächsten Gras-Sub-Tool: Textur → Vertex → Terrain → Textur … */
+    public void cycleSubTool() {
+        if (activateTex == null) return;
+        SharedInput input = ctx.input();
+        if (input.activeTool == input.grassTool) {
+            subVertBtn.setSelected(true);
+            activateVert.run();
+        } else if (input.activeTool == input.grassVertexTool) {
+            subTerrainBtn.setSelected(true);
+            activateTerrain.run();
+        } else {
+            subTexBtn.setSelected(true);
+            activateTex.run();
+        }
+    }
+
     public javafx.scene.Node buildGrassTextureUI() {
         Label title = new Label("Textur-Slots");
         title.setStyle("-fx-text-fill: #111111; -fx-font-weight: bold;");
diff --git a/blight-editor/src/main/java/de/blight/editor/toolset/terrain/TerrainPanelController.java b/blight-editor/src/main/java/de/blight/editor/toolset/terrain/TerrainPanelController.java
index fd2490c..2e6608d 100644
--- a/blight-editor/src/main/java/de/blight/editor/toolset/terrain/TerrainPanelController.java
+++ b/blight-editor/src/main/java/de/blight/editor/toolset/terrain/TerrainPanelController.java
@@ -136,12 +136,65 @@ public class TerrainPanelController {
         return names[0];
     }
 
+    /**
+     * Baut eine Höhen-Eingabezeile: [−] [TextField] [+].
+     * Strg=10m-Schritt, Shift=0,1m-Schritt, sonst 1m.
+     */
+    private VBox buildHeightStepperUI(ToolParameter param) {
+        Label nameLabel = new Label(param.getName());
+        nameLabel.setStyle("-fx-text-fill: #111111;");
+
+        TextField tf = new TextField(String.format(java.util.Locale.US, "%.2f", param.getValue()));
+        tf.setStyle("-fx-font-size: 12;");
+
+        Runnable commitTf = () -> {
+            try {
+                double v = Double.parseDouble(tf.getText().replace(',', '.'));
+                param.setValue(v);
+                tf.setText(String.format(java.util.Locale.US, "%.2f", param.getValue()));
+            } catch (NumberFormatException ignored) {
+                tf.setText(String.format(java.util.Locale.US, "%.2f", param.getValue()));
+            }
+        };
+        tf.setOnAction(e -> commitTf.run());
+        tf.focusedProperty().addListener((o, ov, nv) -> { if (!nv) commitTf.run(); });
+
+        Button minusBtn = new Button("−");
+        Button plusBtn  = new Button("+");
+        minusBtn.setMinWidth(32);
+        plusBtn.setMinWidth(32);
+        minusBtn.setStyle("-fx-font-size: 13; -fx-font-weight: bold;");
+        plusBtn.setStyle("-fx-font-size: 13; -fx-font-weight: bold;");
+
+        minusBtn.setOnAction(e -> {
+            double step = input.ctrlHeld ? 10.0 : (input.shiftHeld ? 0.1 : 1.0);
+            param.setValue(param.getValue() - step);
+            tf.setText(String.format(java.util.Locale.US, "%.2f", param.getValue()));
+        });
+        plusBtn.setOnAction(e -> {
+            double step = input.ctrlHeld ? 10.0 : (input.shiftHeld ? 0.1 : 1.0);
+            param.setValue(param.getValue() + step);
+            tf.setText(String.format(java.util.Locale.US, "%.2f", param.getValue()));
+        });
+
+        HBox row = new HBox(4, minusBtn, tf, plusBtn);
+        HBox.setHgrow(tf, Priority.ALWAYS);
+        row.setAlignment(Pos.CENTER_LEFT);
+        return new VBox(3, nameLabel, row);
+    }
+
     public static void applyModeButtonStyle(ToggleButton btn, boolean active) {
         btn.setStyle(active
             ? "-fx-background-color: #4a90d9; -fx-text-fill: white; -fx-background-radius: 4;"
             : "-fx-background-color: #d0d0d0; -fx-text-fill: #333; -fx-background-radius: 4;");
     }
 
+    public void refreshCurrentPanel() {
+        if (toolPanelRef != null && input.activeTool != null) {
+            showToolParameters(toolPanelRef, input.activeTool);
+        }
+    }
+
     public void showToolParameters(VBox panel, EditorTool tool) {
         toolPanelRef = panel;
         panel.getChildren().clear();
@@ -237,6 +290,8 @@ public class TerrainPanelController {
             }
         }
 
+        ToolParameter heightParam = tool.getHeightParam();
+
         for (ToolParameter param : tool.getParameters()) {
             Label name = new Label(param.getName());
             name.setStyle("-fx-text-fill: #111111;");
@@ -256,23 +311,8 @@ public class TerrainPanelController {
                         param.setValue(Math.round(newV.doubleValue())));
                 panel.getChildren().add(new VBox(3, name, withField(slider, "%.0f")));
 
-            } else if (tool instanceof de.blight.editor.tool.VoxelTool vtP
-                    && param == vtP.plateauTarget) {
-                // x.5-gestufter Slider: min=0.5, Schritt=1 → 0.5, 1.5, 2.5, …
-                double initSnap = Math.round(param.getValue() - 0.5) + 0.5;
-                initSnap = Math.max(0.5, Math.min(49.5, initSnap));
-                Slider slider = new Slider(0.5, 49.5, initSnap);
-                slider.setShowTickMarks(true);
-                slider.setShowTickLabels(true);
-                slider.setMajorTickUnit(5);
-                slider.setMinorTickCount(4);
-                slider.setSnapToTicks(true);
-                slider.setBlockIncrement(1.0);
-                slider.valueProperty().addListener((obs, oldV, newV) -> {
-                    double sv = Math.round(newV.doubleValue() - 0.5) + 0.5;
-                    param.setValue(sv);
-                });
-                panel.getChildren().add(new VBox(3, name, withField(slider, "%.1f")));
+            } else if (heightParam != null && param == heightParam) {
+                panel.getChildren().add(buildHeightStepperUI(param));
 
             } else {
                 Slider slider = new Slider(param.getMin(), param.getMax(), param.getValue());
diff --git a/blight-editor/src/main/java/de/blight/editor/toolset/viewport/ViewportController.java b/blight-editor/src/main/java/de/blight/editor/toolset/viewport/ViewportController.java
index 68b6770..90a23ef 100644
--- a/blight-editor/src/main/java/de/blight/editor/toolset/viewport/ViewportController.java
+++ b/blight-editor/src/main/java/de/blight/editor/toolset/viewport/ViewportController.java
@@ -271,7 +271,33 @@ public class ViewportController {
         pane.setOnMouseExited(e -> input.mouseScreenX = -1f);
 
         viewport.setOnScroll(e -> {
-            int steps = (int) Math.signum(e.getDeltaY());
+            // Auf manchen Linux-Desktops wandelt Shift+Scrollen deltaY → deltaX um;
+            // daher als Fallback deltaX verwenden wenn deltaY == 0.
+            double rawDelta = e.getDeltaY() != 0 ? e.getDeltaY() : -e.getDeltaX();
+            int steps = (int) Math.signum(rawDelta);
+            if (steps == 0) return;
+
+            if (e.isAltDown()) {
+                de.blight.editor.tool.ToolParameter radius = input.activeTool != null ? input.activeTool.getBrushRadius() : null;
+                if (radius != null) {
+                    // logarithmischer Schritt: 15% des aktuellen Werts, mindestens 1
+                    double step = Math.max(1.0, radius.getValue() * 0.15);
+                    radius.setValue(radius.getValue() + steps * step);
+                    input.brushParamsChanged = true;
+                }
+                return;
+            }
+            if (e.isShiftDown()) {
+                de.blight.editor.tool.ToolParameter strength = input.activeTool != null ? input.activeTool.getBrushStrength() : null;
+                if (strength != null) {
+                    double step = strength.getValue() * 0.15;
+                    if (step == 0) step = (strength.getMax() - strength.getMin()) * 0.01;
+                    strength.setValue(strength.getValue() - steps * step);
+                    input.brushParamsChanged = true;
+                    return;
+                }
+                // kein Stärke-Parameter → normales Kamera-Scroll
+            }
             if (e.isControlDown()) { steps *= 10; }
             input.scrollAccum.addAndGet(steps);
         });
diff --git a/blight-map/src/main/map/blight_grass_vertex.blgv b/blight-map/src/main/map/blight_grass_vertex.blgv
index 35d3069..9b17644 100644
Binary files a/blight-map/src/main/map/blight_grass_vertex.blgv and b/blight-map/src/main/map/blight_grass_vertex.blgv differ
diff --git a/blight-map/src/main/map/blight_map.blm b/blight-map/src/main/map/blight_map.blm
index 4700fb5..bf82a4f 100644
Binary files a/blight-map/src/main/map/blight_map.blm and b/blight-map/src/main/map/blight_map.blm differ
diff --git a/blight-map/src/main/map/chunks/chunk_09_01.blc b/blight-map/src/main/map/chunks/chunk_09_01.blc
index c53212e..ce7eb30 100644
Binary files a/blight-map/src/main/map/chunks/chunk_09_01.blc and b/blight-map/src/main/map/chunks/chunk_09_01.blc differ
diff --git a/blight-map/src/main/map/chunks/chunk_09_02.blc b/blight-map/src/main/map/chunks/chunk_09_02.blc
index b1da577..eb4cffd 100644
Binary files a/blight-map/src/main/map/chunks/chunk_09_02.blc and b/blight-map/src/main/map/chunks/chunk_09_02.blc differ