Desk Chaining

I appreciate that true chaining of desks would be difficult, if not impossible, with the physical architecture. However it should be possible to implement desk control linking for larger shows.
One way I can think would be a global configuration option ‘Daw button selects remote’ or some such. When that mode is set up toggling the DAW button selects controlling the local console or a linked remote one. On a button-for-button screen-for-screen basis.
Leave routing so as to effectively sub-mix as is.