Hello,
I want to share here the answer I was looking for to my question: "how to modify the 2D appearance of an object in elevation". The answer is extremely simple:
1- create the desired 2D drawing for your object (with hot spots at every corner)
2-save your selection of 2D drawing as a label
3-place your label over your object in elevation (it works in plan)
4-hide the layer containing the object, there will remain your "2D label" which will follow the slightest movements of your hidden object
I hope that this extremely simple solution will benefit as many people as possible.
Here is my Label without any password because I used to share before judging my neighbor :
It is a Archicad 22 object so that it can be used by the greatest number.
Enjoy !
Christophe - FRANCEArchicad Designer and Teacher
Archicad 15 to 27 FRA FULL
OS 11.6 Big Sur - MacBook Pro 2017 - 16Go RAM
"Quality is never an accident ; it's always the result of an intelligent effort" John Ruskin