Applying color mask problem

I am trying to learn how to use color and shape masks using Lynda.com. Using the color mask tool from the color wheel I can create a secondary color mask for the color I want to change. I can change the selected color with color wheels, but I do not know how to 'apply and view' the changed clip.

The inverse portion of the clip is all grey. I have tried return, esc etc but I still have the color mask eye dropper active. How do I apply and look at the changed color clip?

I do not see a way to simply deselect everything vs CMD Z multiple times and start over. If I uncheck the color mask in color wheels from the video inspection it just hides it.

Any help would be appreciate

There is a reset for the color effect.