fix(window-level): move window level region to more tools menu (#4215)

modes/basic-test-mode/src/moreTools.ts

@@ -190,6 +190,14 @@ const moreTools = [
           commands: setToolActiveToolbar,
           evaluate: ['evaluate.cornerstoneTool', 'evaluate.isUS'],
         }),
+        createButton({
+          id: 'WindowLevelRegion',
+          icon: 'icon-tool-window-region',
+          label: 'Window Level Region',
+          tooltip: 'Window Level Region',
+          commands: setToolActiveToolbar,
+          evaluate: 'evaluate.cornerstoneTool',
+        }),
       ],
     },
   },