Thank you, Box!

My interface looks like this on the Mac. The "Materials" label brings up the Colors window with my photos showing up under "Colors in Model". I like the PC version better.

How would you duplicate a texture without importing it again?
Thanks.

My point exactly. I just don't want to import all the image over again, doubling my file size and rendering time.

Thanks, guys.
I'm just sending a screenshot because my model is already 15MB with all the photos. I definitely want to project through the solid, if possible, not just affect both sides of a face. My images are abstract enough that flipping is not really the issue. It's just pure laziness on my part. That's the issue.

I have about 60 of these to project in this model, so I was trying to save myself some steps.

Is there a way to project an image through a solid shape so that it shows up on both sides?