When a dimenions is added to its host (wall, floor, etc. , ...) you place the dimension manually with a certain offset from the host. But when you change the measurements of the element, the dimensions don't move with its host, they stay in the same place. The user needs to manually change the location of the dimension!
It would be nice if the user can input an "offset from host" in the parameter settings of the dimensions. The dimensions would move with the element even if the measurements would change. Less manual labour!