diff --git a/packages/playground/src/shared/utils/useExtensionButton.ts b/packages/playground/src/shared/utils/useExtensionButton.ts
new file mode 100644
index 0000000..dbc03fd
--- /dev/null
+++ b/packages/playground/src/shared/utils/useExtensionButton.ts
@@ -0,0 +1,36 @@
+import studio from '@theatre/studio'
+import {useEffect, useMemo, useRef} from 'react'
+
+let idCounter = 0
+
+export function useExtensionButton(
+  title: string,
+  callback: () => void,
+  svgSource: string = stepForward,
+) {
+  const refs = useRef({callback, svgSource})
+  const id = useMemo(() => 'useExtensionButton#' + idCounter++, [])
+  useEffect(() => {
+    studio.extend({
+      id: id,
+      toolbars: {
+        global(set) {
+          set([
+            {
+              type: 'Icon',
+              title,
+              onClick() {
+                refs.current.callback()
+              },
+              svgSource: refs.current.svgSource,
+            },
+          ])
+          return () => {}
+        },
+      },
+    })
+  }, [id])
+}
+
+// FontAwesome FaStepForward
+const stepForward = `<svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 448 512" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg"><path d="M384 44v424c0 6.6-5.4 12-12 12h-48c-6.6 0-12-5.4-12-12V291.6l-195.5 181C95.9 489.7 64 475.4 64 448V64c0-27.4 31.9-41.7 52.5-24.6L312 219.3V44c0-6.6 5.4-12 12-12h48c6.6 0 12 5.4 12 12z"></path></svg>`