@magicteddy Yes, that mostly works pretty well! I’ve recently complicated things by naming sublayers with their parent layer prefix - so I can actually see what layer is active in the top toolbar. So it wouldn’t work with different layer names.
This is really just a layer merging question. I found a script that can merge layers, but doesn’t deal with sublayers. There’s a similar query about merging sublayers here @Daniel_Krajnik.
Here’s an example file. I’d like to copy/move the geometry inside layer PL-02 to PL-01.
LayerMerge test.3dm (2.9 MB)
LayerMerge test (ending).3dm (3.2 MB)
@jcparks I don’t think tags exist it Rhino in that sense, I was just thinking of a non-hierarchical way to organize things.