Remove unused reference planes

[solamour]

Have a look at @oliver.green 's thread here - it may be of use!

Pre-Delete Elements: Know What You're About to Delete

Hi all, The question: how to know which elements would be deleted if I deleted a certain object in my model? For instance, if I deleted a wall, can I get a list of its hosted objects which would also get deleted? I’ve been looking for a Python version of this workflow for some time, so though I’d share. Credit to @Deyan_Nenov for his macro version (I’ve just more or less transcribed it to Python) and to @Thomas_Mahon for various tips. Original macro can be found here: https://twitter.com/did…