The Idea on eyedropper for the new quick driver operation

In the new blender 2.78(build version), you can quick setting the driver through the eyedropper, but there a little clunky, sometime we should split the editor and pinned one to keep open two Properties Panel by one time.

The big problem is the bone Properties Panel can't be pinned, and it's will as one object in blender. So if possible , I hope the eyedropper operation can temporarily disable by some hotkey, e.g. if you keep ALT press, will disable eyedropper on temporarily , and now you can select the object, switch the editor or the panel, than relex the ALT to pick up your properties.

it's will be much more convenient for do this, not need split editor to pin that.

Thanks:D