Click to edit, double click to get out

people may like this feature in future blender. I used PME (Pie Menu Editor) addon to achieve this. Thanks to Roaoao the creator of PME for the code.

Click, Swipe and I'm into edit mode. Double click off the object and I back into Object mode. See video. blenderartists.org/t/pie-menu-editor-1-15-5/662456/1587