@anthonyp said:

Sorry, I haven't explained well my request:

The script have to colour (assign a red-yellow material) to the faces that where created-erased in the comparation from ante and post operam.

The coloured parts (naturally divided by colour) are grouped and moved on their respective layer. This group include the face and his edges.

Thank you for your interest! πŸ˜„

OK... BUT how is the tool going to know what are the parts to be NEWW or DEMO ?? Are they somehow differentiated in the importing ? If so we can use that to change color/layer etc...

If not it might be complex to work out what's been added and what's been removed... πŸ˜•