The ability to select several features and shift the nominal in any axis.
For Example Two Spheres on a Bar. New revision change makes the bar 1mm longer. Lets assume one of the spheres is 0,0,0. I could select the feature(s) and move their coordinates in the desired direction.(Nominal, theo, target - perhaps a toggle for each). A lot of times this can be done by manipulating alignments, but not always and this is much simpler.
I could also see the ability to grow or shrink a group of features by 'x.xx' as useful as well. A lot of parts have families with only minor changes and lots of similarities.
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