Bend Group

Hello, first timer here.
I want to bend a group of layers, or linked layers, like arc them. If you've played Smash Bros. Brawl, the glass challenge screen is the look I'm looking for.

http://www.smashbros.com/en_us/gamemode/various/images/various22/various22_080114b-l.jpg

I try to arc it, but the program doesn't allow you to click the button when a group or linked layers are selected.

Thanks,
-Gryffin

I figured it out. I just merged the layers then arced it. Thanks.
Image coming shortly.