it would be nice to get a hint of whats selected on the canvas in workbench. Sometimes it is hard to figure out whats selected in a big workspace if you want to delete some connections and transformers.
-use the satus bar of the workbench?
-add a chapter in the navigator?
-pop-up with a summary of current selection?
(the next step would be to be able to right-click on a selected category and e.g delete them)