Solidworks layer problem

[AxelBoirot]

Hello and thank you for your site and all the macros!
I have a question, I don't know how to code VBA so I'm writing to you.
Could you create a macro to create a layer in relation to a solidworks part or assembly in the context of assembly and not drawing?

To clarify the subject, we make furniture. Everything is very simple, most of the time, it's like tables with legs, different coverings, equipment (tank, tap, socket etc.).
Except that on a plan, there can be 200 table feet.
In the drawing context, we cannot select all the feet at once to drag them into a layer. But in the assembly context, we can select all the feet at once but not create a layer from this environment.
So I want to link the two: select all the feet (or other parts) and link them to a layer.

Do you think this is feasible?
Thank you and have a nice day
Sincerely
Axel