Display Assemblies in Tree Mode Using Objects Panel

[jpoles1]

When building complex assemblies it is great to be able to view/hide each individual component of the assembly using GUI. I may be missing how to do it (if I am please let me know!), but if not already a feature it would be great to be able to break assemblies into a "tree view" on the Objects sidebar under CQ models allowing you to view/hide each individual part of the overall assembly and browse them; ideally by the name set when .add()-ing to the assembly.

Here's a complex assembly (rendered using show_object) with a number of parts which it would be nice to have split out under the section indicated by the black arrow:

As in FreeCAD's tree view for example:

[zwn]

This is possibly a duplicate of

• [feature request] missing some good stuff about assemblies #249

but this one has the subject more to the point.