Yes I know this ("Duplicate Component") and it's a very useful command. But if I make some changes on the duplicated Symbol @ Part 1 and then want to duplicate it to Part 2,3,4 etc. the centuring ist an issue because of the virtual Layers (I like to prevent them and thus have to copy a part by pins an shapes one after another (then the centuring becomes an issue)).
Ok, it's a minor point so don't bother ignoring this. There are of course more major issues to improve this really good working program.