change in the aid

[Error404]

Good morning, everyone.
I am assembling a set, the problem that arises is as follows:
I should make a change in a particular of the assembly without changing the basic detail. I better explain, I have to make a hole in the piece inside the axieme, but the basic model doesn't have to. advice? thanks in advance

 

[Catafratto]

go to the 3d model tab: you will see that there are commands to create sketches and a series of work. staying in the environment together you can do these work without changing the parts; i.e. if you drill two plates together the individual plates do not change. f1 > search for "common work" for full video help

 

[Error404]

perfect, thank you very much:redface: