diff --git a/packages/sanddance-explorer/src/dialogs/settings.tsx b/packages/sanddance-explorer/src/dialogs/settings.tsx
index 880fcc9e7..1083bc658 100644
--- a/packages/sanddance-explorer/src/dialogs/settings.tsx
+++ b/packages/sanddance-explorer/src/dialogs/settings.tsx
@@ -65,6 +65,7 @@ function filterSignals(signal: NewSignal) {
         case SandDance.constants.SignalNames.ColorReverse:
         case SandDance.constants.SignalNames.PointScale:
         case SandDance.constants.SignalNames.TreeMapMethod:
+        case SandDance.constants.SignalNames.ScaleNice:
         case SandDance.constants.SignalNames.ZGrounded:
             return false;
         default:
diff --git a/packages/sanddance-specs/src/charts/barchartH.ts b/packages/sanddance-specs/src/charts/barchartH.ts
index 48ba4ad47..a18d625be 100644
--- a/packages/sanddance-specs/src/charts/barchartH.ts
+++ b/packages/sanddance-specs/src/charts/barchartH.ts
@@ -62,7 +62,6 @@ export default function (specContext: SpecContext): SpecBuilderProps {
         });
     } else {
         const aggProps: AggregateContainerProps = {
-            niceScale: true,
             dock: 'left',
             globalAggregateMaxExtentSignal: 'aggMaxExtent',
             globalAggregateMaxExtentScaledSignal: 'aggMaxExtentScaled',
@@ -153,6 +152,7 @@ export default function (specContext: SpecContext): SpecBuilderProps {
         specCapabilities: {
             countsAndSums: true,
             percentage: true,
+            signals: totalStyle !== 'sum-strip-percent' ? [SignalNames.ScaleNice] : undefined,
             roles: [
                 {
                     role: 'y',
diff --git a/packages/sanddance-specs/src/charts/barchartV.ts b/packages/sanddance-specs/src/charts/barchartV.ts
index e301be11a..a96c9afa6 100644
--- a/packages/sanddance-specs/src/charts/barchartV.ts
+++ b/packages/sanddance-specs/src/charts/barchartV.ts
@@ -62,7 +62,6 @@ export default function (specContext: SpecContext): SpecBuilderProps {
         });
     } else {
         const aggProps: AggregateContainerProps = {
-            niceScale: true,
             dock: 'bottom',
             globalAggregateMaxExtentSignal: 'aggMaxExtent',
             globalAggregateMaxExtentScaledSignal: 'aggMaxExtentScaled',
@@ -152,6 +151,7 @@ export default function (specContext: SpecContext): SpecBuilderProps {
         specCapabilities: {
             countsAndSums: true,
             percentage: true,
+            signals: totalStyle !== 'sum-strip-percent' ? [SignalNames.ScaleNice] : undefined,
             roles: [
                 {
                     role: 'x',
diff --git a/packages/sanddance-specs/src/charts/strips.ts b/packages/sanddance-specs/src/charts/strips.ts
index f0747d817..36b21f854 100644
--- a/packages/sanddance-specs/src/charts/strips.ts
+++ b/packages/sanddance-specs/src/charts/strips.ts
@@ -36,7 +36,6 @@ export default function (specContext: SpecContext): SpecBuilderProps {
         const globalAggregateMaxExtentSignal = 'globalAggregateMaxExtentSignal';
         const props: AggregateContainerProps = {
             dock: 'top',
-            niceScale: false,
             globalAggregateMaxExtentScaledSignal,
             globalAggregateMaxExtentSignal,
             sumBy: specColumns.size,
diff --git a/packages/sanddance-specs/src/charts/treemap.ts b/packages/sanddance-specs/src/charts/treemap.ts
index b17c79688..e4eeb5ce0 100644
--- a/packages/sanddance-specs/src/charts/treemap.ts
+++ b/packages/sanddance-specs/src/charts/treemap.ts
@@ -36,7 +36,6 @@ export default function (specContext: SpecContext): SpecBuilderProps {
         const globalAggregateMaxExtentSignal = 'globalAggregateMaxExtentSignal';
         const props: AggregateContainerProps = {
             dock: 'top',
-            niceScale: false,
             globalAggregateMaxExtentScaledSignal,
             globalAggregateMaxExtentSignal,
             sumBy: specColumns.size,
diff --git a/packages/sanddance-specs/src/constants.ts b/packages/sanddance-specs/src/constants.ts
index ab955cf8f..39e259fb2 100644
--- a/packages/sanddance-specs/src/constants.ts
+++ b/packages/sanddance-specs/src/constants.ts
@@ -68,6 +68,7 @@ export const SignalNames = {
     TextSize: 'Text_SizeSignal',
     TextTitleSize: 'Text_TitleSizeSignal',
     TreeMapMethod: 'Chart_TreeMapMethodSignal',
+    ScaleNice: 'Chart_ScaleNiceSignal',
     XBins: 'RoleX_BinsSignal',
     YBins: 'RoleY_BinsSignal',
     ZHeight: 'RoleZ_HeightSignal',
diff --git a/packages/sanddance-specs/src/globalScope.ts b/packages/sanddance-specs/src/globalScope.ts
index 73e023d3c..2c60ac59d 100644
--- a/packages/sanddance-specs/src/globalScope.ts
+++ b/packages/sanddance-specs/src/globalScope.ts
@@ -25,6 +25,7 @@ export interface GlobalSignals {
     plotOffsetRight: NewSignal;
     plotHeightOut: NewSignal;
     plotWidthOut: NewSignal;
+    scaleNice: NewSignal;
 }
 
 export interface GlobalScopeProps {
diff --git a/packages/sanddance-specs/src/layouts/aggregateContainer.ts b/packages/sanddance-specs/src/layouts/aggregateContainer.ts
index 440ff583e..472abf208 100644
--- a/packages/sanddance-specs/src/layouts/aggregateContainer.ts
+++ b/packages/sanddance-specs/src/layouts/aggregateContainer.ts
@@ -27,7 +27,6 @@ export interface AggregateContainerProps extends LayoutProps {
     sumBy: Column;
     globalAggregateMaxExtentSignal: string;
     globalAggregateMaxExtentScaledSignal: string;
-    niceScale: boolean;
     showAxes: boolean;
 }
 
@@ -69,7 +68,7 @@ export class AggregateContainer extends Layout {
 
     public build(): InnerScope {
         const { aggregation, names, props } = this;
-        const { dock, globalScope, groupings, niceScale, parentScope, showAxes } = props;
+        const { dock, globalScope, groupings, parentScope, showAxes } = props;
 
         addTransforms(globalScope.data,
             {
@@ -137,7 +136,7 @@ export class AggregateContainer extends Layout {
                     },
                     0,
                 ],
-            nice: niceScale,
+            nice: { signal: globalScope.signals.scaleNice.name },
             zero: true,
             reverse: dock === 'top',
         };
diff --git a/packages/sanddance-specs/src/signals.ts b/packages/sanddance-specs/src/signals.ts
index 801ba70d0..802d59e6b 100644
--- a/packages/sanddance-specs/src/signals.ts
+++ b/packages/sanddance-specs/src/signals.ts
@@ -85,6 +85,15 @@ export function textSignals(context: SpecContext, heightSignal: string) {
                 step: 0.05,
             },
         },
+        {
+            name: SignalNames.ScaleNice,
+            value: true,
+            bind: {
+                name: specViewOptions.language.scaleNice,
+                debounce,
+                input: 'checkbox',
+            },
+        },
     ];
     return signals;
 }
diff --git a/packages/sanddance-specs/src/specBuilder.ts b/packages/sanddance-specs/src/specBuilder.ts
index e43559f31..adcc32104 100644
--- a/packages/sanddance-specs/src/specBuilder.ts
+++ b/packages/sanddance-specs/src/specBuilder.ts
@@ -72,6 +72,7 @@ export class SpecBuilder {
             plotOffsetRight: { name: SignalNames.PlotOffsetRight, update: '0' },
             plotHeightOut: { name: SignalNames.PlotHeightOut, update: SignalNames.PlotHeightIn },
             plotWidthOut: { name: SignalNames.PlotWidthOut, update: SignalNames.PlotWidthIn },
+            scaleNice: { name: SignalNames.ScaleNice },
         };
     }
 
diff --git a/packages/sanddance-specs/src/types.ts b/packages/sanddance-specs/src/types.ts
index b195f0577..ab4f1983f 100644
--- a/packages/sanddance-specs/src/types.ts
+++ b/packages/sanddance-specs/src/types.ts
@@ -223,6 +223,11 @@ export interface SpecLanguage {
      */
     treeMapMethod: string;
 
+    /**
+     * Label for nice scale toggle.
+     */
+    scaleNice: string;
+
     /**
      * Label for scatterPlot point scale slider.
      */
diff --git a/packages/sanddance/src/defaults.ts b/packages/sanddance/src/defaults.ts
index 45ed78fac..0cc995cee 100644
--- a/packages/sanddance/src/defaults.ts
+++ b/packages/sanddance/src/defaults.ts
@@ -52,6 +52,7 @@ export const defaultViewerOptions: ViewerOptions = {
         InnerPaddingSize: 'Inner padding size',
         OuterPaddingSize: 'Outer padding size',
         treeMapMethod: 'Treemap layout',
+        scaleNice: 'Nice scale',
         facetColumns: 'Facet columns',
         facetRows: 'Facet rows',
         markOpacitySignal: 'Mark opacity',