Adding submenu for Material Switching Unit

[ibrahimcengiz]

Hello,
there is a project called MSU (material switching unit) similar to Prusa MMU2 allowing multimaterial printing.
On the project marlin fork LCD menu on marlin mode is modified and MSU can be used with it.
But on the touch mode there is no menu as MSU.
Is it possible to add that menu on touch mode?
If there is a document how to implement a submenu i can try to code it.
regards

@PierreMasselot1

here is the project link :
https://github.com/PierreMasselot1/Marlin/blob/bugfix-2.0.x/Marlin/src/lcd/menu/menu_msu.cpp