Key shortcut to hide rotation handels#89

I often find that when I go to grab a handel, I grab the wrong one due to the angle of the camera. Can you make 3 quick keys, that when pressed, would hide 2/3 of the rotation handels? So if I know I need to use the green one, I can hold a key, and only the green one becomes visible. I think haveing one key for each axis would greatly speed up the posing process.