Are you talking about UNV or UNX Universes?
Do you mean you want to compare two dimensions or measures from within a universe?
There is no way that I know of to do this. You can save the universe as PDF which gives the overview of the objects and stuff, but doesn't go into properties, CUID, etc...
The object details are all contained within the unv file itself and that is encrypted. It isn't really exposed to end users at all.
Why do you need this info?