Look into portals https://reactjs.org/docs/portals.html https://reactjs.org/docs/portals.html. The menu should probably be owned by a shared component somewhere

Look into portals https://reactjs.org/docs/portals.html https://reactjs.org/docs/portals.html. The menu should probably be owned by a shared component somewhere in the root of the tree, and then children can ask it to open via handlers propagated somehow (context, redux, whatever).