Selective Paint Brushes

Some of the effects allow you to selectively paint or unpaint your photo once you have applied the effect...like Black & White or Vibrance. However I would like to see that feature applied to all of the effects.

I would also like to see the a selective paintbrush on Levels...like it is on Curves.  Thanks!

I agree with Ally I'd like that option as well, so many times I've opened one of the effects wanting to paint a specific portion or item and can't. I'd also like the option to actually paint out an area then have it actually crop out of the photo. Not just black and white the photo and paint what you want into it again. Cause cropping limits you to sizing

Yes, I agree... especially with the Ortonish tool.  I'd love to paint that on on/off areas.