Well, here's what I did:
I hovered my mouse over a command icon in the ribbon. Finger slipped and I see the RMB menu, with the 'hide command label" in the middle of the pop-up menu. Seeing it was a little vague, I clicked the line. Oh! Neat!! Command line text dissapeared, as i thougth it would (I just have the icon, the picture) . So, I hover ove rhte icon and RMB again, thinking I will get an 'Unhide' option. But no. It now says somethign to the effect of 'hide all labels in group'. Ok, I think, maybe I need to cycle thru the options to get an 'unhide option (thinking I will get hide one, hide all, unhide). But no.
So, I have a group with their labels hidden. And the 'hide command label' is greyed out, and I can see the box is checked. Other commands have the option to hide their command lables, but I dare try it again for fear of soon haveing just a ribbon little icon / pictures.
Inventor has / had a similar feature where you can turn off the lables and work in 'Expert Mode' (just have little icons) but you can turn them back on if you desire, and with ine click!
OK, just palyed with it a little more , thinking (as I've come to expect from Pro E) it's some weird placement or some weird combination of clickes & such. If I hover over the group title bar at the bottom of the ribbon (the group label) I can 'unhide all labels in group'!! And it works!!! (But why have it on one instance, but not another.. wierd.) But, sadly, the original Icon I hid the label is still hidden. Oh, no, wait, If I hover my mouse over the actual icon (not the 'defined button area', but the icon) I can get it back..
So, problem solved....
