Can't find the "Do not crop option for Stabilization"

I have been ghosting this site for a bit and this is my first post.
I'm having trouble finding the option in "Stabilization" where I can turn off the auto crop and leave the stabilization on.
With projects I need to stabilize and when I'm also using 2.35 format bars over normal 1080p footage, I use to be able to turn off auto crop and let the black bars hide any movement of frames in the corner regions. This would allow me to keep the original 1080p resolution and not take a resolution hit when it would auto crop for me.

Thanks,
Tim Cook (Yes my name is really Tim Cook)

I wouldn't put the black bars on the clip itself. I'd put them on a layer above everything. That way you can do whatever you want to the clips and the letterboxing won't be affected in any way. What I'd personally do is create an image in Adobe's popular "Photoshop" software with a transparent 2.39 center at full 1080p resolution and place that on top of everything, stretching it out over the timeline. Maybe someone else has an easier way?

PS - I know you and your company really like iPhones and stuff, but don't forget about the pro market. Please see that your company release a new Mac Pro. Give it 2015 technology if you must, just something beefier than is currently available from your company.