Just like we do for the toolbar, the sidebar's contents sholud be editable, or at least let me hide it. I literally only ever use Albums, Tags, Captions tabs, so my screen is constantly cluttered with useless sidebar tools. Also to have these these sections open on both sides of the software Decreases image real estate when you ever only need one at a time. Right now the only way you can hide a side bar is through full screen mode. And you can only change the contents of a toolbar, not a sidebar.