I can’t edit a dimension’s dimension point if the point’s within an object displaying with a fill. The fill occludes the point and I can’t select it. The Display mode has to be changed to edit such dimensions, to one that doesn’t display fills. I think the intention of the setup is that the dimensions points shouldn’t be occluded by anything. This may or may not be a VirtualArq issue because the filled object is a wall.
Use Ghosted viewport display mode. (If you want to snap to something that is occluded, use SnapToOccluded command.)