[whpalmer4]

You can hide the sidebar by simply putting the mouse cursor on the right side of the sidebar (or its scrollbar, if there is one) and dragging to the left until it disappears. To restore it, grab the little dot at the left edge of the window and drag it back to the right. Take a snapshot of the perspective when you have the window arranged as you want it, and OF will put it back that way the next time you use that perspective.