Insertion point of dynamic block within another dynamic block

[dracon]

I can dig into a dynamic block within another dynamic block and find it's insertion points that are relative to the original dynamic block but I'd like to find those same coordinates in the UCS, maybe something with "Trans"? I'm good with Autolisp but not great with Visual Lisp (always learning though). Also I'm not totally understanding how objects are embedded into blocks with assoc callouts like 330 and 360. I'd love easy to understand explanations if possible.

Thank you in advance!!!

[ВeekeeCZ]

HERE is the example with a circle within a block. So not as simple as TRANS.

So you would need INSERT instead and check the name - possibly the simplest would be (getpropertyvalue ent "BlockTableRecord/Name")