This is a longtime annoyance which I would like to see a fix for. There seems to be situations (example attached) where if walls are aligned but not locked together and you move one of those walls, others move too. Currently the only solution is to disjoin, but this also disjoins dimensions which is unfavourable.
I would like to see a 'Disjoin from Selected' button on the Options bar, which would allow me to decide which objects to disjoin from.