fix: Delete study measurements instead of all measurements (#4882)

extensions/cornerstone/src/commandsModule.ts

@@ -888,6 +888,9 @@ function commandsModule({
     },
     scroll: (options: ToolTypes.ScrollOptions) => {
       const enabledElement = _getActiveViewportEnabledElement();
+      // Allow either or direction for consistency in scroll implementation
+      options.delta ??= options.direction || 1;
+      options.direction ??= options.delta;
 
       if (!enabledElement) {
         return;