Can I see dimensions on an imported STL file?

[Lincoln96]

I am a newb.
Is there a button I can hit on the pro3 software that will show dimensions on an imported STL file?


This is not a flat surface, there is a contour to it. The center is about 5/8" thick, while the outside edges taper to more like 1/4" thick. It won't upload as is, I'm hoping if I see some measurements, I'd maybe have a chance of figuring out what's going on.
The imported files don't seem to react like the actual mpc files do. Can anyone please point me in the right direction?