It appears there are some regression bugs creeping into v9.1 which were not present in v9.0. This is a new one related to the "look and feel" of the application (yes, I have noticed the change to how it looks now, changes between 9.1 and 9.0). It appears that I cannot resize columns in a schema editor. When I point between them and try to drag a column for a width resize, instead, a double click is executed to sort it. There is no way to resize it at this point. I cannot move columns around either. The window look changes implemented in the new v9.1 version seem to do some weired stuff reducing functionality within the studio.