I imported a Word doc for a client into FM 2015. Then he had me make changes and save as a revised doc and wants to see the changes. when I try to compare I get a dialog that says documents need to have uniquely named flows. How do I do that so I can compare the two?
Now, taking the message at its word, here's how flow tags work:
The flow tag appears in the status bar, in the lower left corner of the Fm window, right above the Windows start menu. Start by clicking in the text on page one and note the flow tag in both files. Are they the same or different? Flow A is the default, but even if you are new to Fm, I can't imagine you changed the flow tag without realizing it.
To answer your question, you can change the flow tag by going to Graphics > Object Properties > Text Frame > Tag.
Do you have multiple flows in the files? Or in one file?
Also, at the bottom on the link I posted above, I noted that Adobe Acrobat Standard/Pro (not Reader) has the same feature. That may also be a solution for you if you don't figure out what is going on with FrameMaker.