after making adjustments with the brush the "done" button now wont show up (letting me finish the adjustment) - it used to but now it just stopped... anybody know why?
omg - thank you!!! that was it! my cat always walks across my keyboard and messes things up - changes things!
You do know, that the cat did that on purpose, it was no accident.
Two years after this question and this just happened to me - the Done button disappeared. Thanks for the answer! (Dumb cats!)
Also helpful is that the [Return/Enter] key will apply a Brush adjustment and allow you to [click] and continue with another brush adjustment.
The [K] also is the shortcut for the Brush. It both toggles the Brush 'ON' and 'OFF'. Again useful when applying multiple brush asjustment 'pins' to an image. Just hover a finger over [K]- Press K to brush, Press K to apply, Press K to brush, Press K to apply, and so on!.