ProE parameters interface is improved but still not very flexible as far as creating and changing parameters and types, or adding multiple parameters quickly.
For instance, I needed to create multiple parameters that were in groups of three, and couldn't be sure of the naming convention I wanted to use until I had them all layed out and made several changes to the naming scheme and data type. I did this in a text file and wanted to past them in, but couldn't in the parameter UI. This is part of the parameters I had:
Having recently experimented with Pro/Program I recealled that when I added parameters in the input section of the part program, it had automatically created them in the part, and they were accessible through UI. So I simply cut and pasted the text into the input section, applied the changes, verified they existed through the UI, and went back and deleted them out of the input section of the part program file. (This does not remove them, they must be individually deleted through the UI once they are created!)