Resizing and shortcut for temporary disappearance of gizmo

[Arkhonian]

• I occasionally find that by animating I find myself with the view away from the gizmo, and each time I have to move back closer to move the control. It would be great if there was a way to enlarge or shrink the gizmo as needed.
• When I create a composition, the gizmo can get in my way by being an extra element. It would be nice to have the ability to temporarily disable it without necessarily having to deselect the mesh. Kind of like in Maya, there is the Q shortcut that disables the gizmo if you find it in the way.