I realize that most in this thread are not looking to use locking, but it was an ok solution for me and thought this might be useful to others on this thread.
Wanted to write a utility widget be able to set objects in the scene (based on types, label, class, etc) to have the “Lock Actor Movement” flag set true. Used Exec Editor Command → actor TOGGLE LOCKMOVEMENT and Tags to set the state. You could also append or prefix the object(s) label with something like “LOCKED”
