How to disable sideMenu at top block (index 0)

[Gr4vity4]

inspiration from notion title, at the top can't delete or change props, I tried to use getTextCursorPosition() method with simple watching instance with setInterval() then setState but still doesn't work

<BlockNoteView
  editor={editor}
  theme={"light"}
  onChange={() => {
    syncToCloud(editor.document);
  }}
  slashMenu={false}
  sideMenu={false}
>
  {/* {controlSideMenu && (
    <SideMenuController
      sideMenu={(props) => (
        <SideMenu {...props}>
          <DragHandleButton {...props} />
        </SideMenu>
      )}
    />
  )} */}

  {/* Replaces the default Slash Menu. */}
  <SuggestionMenuController
    triggerCharacter={"/"}
    getItems={async (query) =>
      // Gets all default slash menu items and `insertMarkdown` item.
      filterSuggestionItems(
        [
          ...getDefaultReactSlashMenuItems(editor),
          insertMarkdown(editor),
          insertMarkdownCompact(editor),
          insertAsk(editor),
        ],
        query
      )
    }
  />
</BlockNoteView>

[virus2016]

Would love a solution for this