How to: Multiple sub-models within one Rhino file with selection remembered?

I have one Model and several sub-models in an architectural Rhino model (one file).

For instance:

  • main/surroundings
  • main/steel frame
  • main/cladding

This way, each layer is easier to study by outside collaborators, using the web viewer.

However, as all geometry is in the same file, every time I update a sub-model I have to reselect or redefine the objects, or layers that belong to said sub-model. Is there a way to save the sub-model collections in the Data Exchange/Send tab?

Currently, if I switch between the models where to send, I have to every time reselect the sendable objects.

Rhino 7, Speckle v2.21.3