hello there
great game... so far

i did not like that in DOS2 and i don't like it here, to unchain i need to drag the portrait away, then if i want to make some order with the remaining characters the unchained one gets pull together and the whole process starts from anew.
you already have great feature with lock icon on the skills bar, open lock; move, remove etc.. closed lock; no accidental removing. my suggestion put the same lock on the side of portraits, when they are locked they can be arranged any way without accidently chaining or unchaining.
cheers