Latest update space bar issue and blue square all over the place in V8.2

The new update makes the space bar to open or close the panel that we are working on instead of serving as zoom in zoom out option like before. Also this new blue square all over theplace is quite unncesary and can't be dissabled as far as I checked. Please developers understand that this program is based on FAST EDITING not making it more extra steps slow and annoying.