I am new to Mac.
I have a MacBook Pro and am editing with cs6.
I noticed the software does not 'fill' the screen. I still see the apps at the bottom. I have tried the plus button, but the window doesn't get any bigger. Any solutions?

Under system preferences click on dock. Then click on automatically hide and show dock. Now you can grab the bottom of Premieres window and pull it down to bottom of screen.

Thank you!