Many ways to do it.? But the way I usually do it is have two sets of crosspoints.
One set is for source or device control.
The other set is for room control (volume, source selection, power, etc)
I keep on the source/device crosspoints in one folder call crosspoints/Source Control.
And keep all the room crosspoints in another folder call crosspoints/Room Control.
Nothing but equipment, control, and route symbols in these folders with the each type in its own subfolder.
That way I can easily visualize how the equipment, control, and routing symbols are related.? I personally avoid putting my crosspoints in modules as I find that harder to figure out which modules are connected to each other.?