@Matteo my version ofthe script tries to recognize 3 different objects. So draw the same object in 2 boxes will not work: the software assumes they are different.
The initial version of mkeywood is different.
1/ and 3/ are quite some work and are not in my top priorities now.
For 1/ maybe you could modify the code to fit your needs?
2/ is easy, i could add it, i’ll put that in a future version.