When you enable Mesh on a ZoneDirector, all your APs will reboot, so do it during a scheduled maintenance window.
All your current wired APs will remain working as RAPs (Root APs), and the clubhouse AP would join the Rooftop as a MAP (Mesh AP), with a possible indoor AP seen thru it.
Start with your clubhouse AP(s) connected to the wire, until you've set the ZD for Mesh, and they've had a chance to connect over wire to get configured correctly.
After you move them out to the clubhouse, they will look for the Mesh SSID used by the ZD, to join/connect (and link the additional indoor clubhouse AP).