Oh right, before reading about the unit enforced displacement check I read about that in the book. However, I wonder why do you say that constraints shouldn't be removed?
Understood, first gotta define the problem, the goals and the timeframe, then see what can I use to get that on time. Thank you for your insights JohnM!
disla, I guess what you suggest is a software-related way of finding disconnected nodes, whereas what the book suggests is a software-agnostic way of doing it. Thanks for the tip!
JohnM, I have seen the link that you suggest, and I think is a great…
Thank you for your answers Victor, they are of great help to me. My third question was badly formulated; after reading a the manual and your example, it's much clearer now.