If you dimension in a view and break the view, there is no way to move around the dimension after. We have to position the dimension before breaking the view and that is annoying.
View breaks in detail callout views can be quite hit & miss when you have dimensions displaying across the split view. This makes dimensions hard to move or select.
This may just be a bug (2020.2.6), but having the ability to modify a dimension which is spanning across view breaks would be helpful and quite necessary with enlarged detail views.