Additional alternate unit graphics controls would be helpful. Color difference and hiding alternate units that use the same unit format as the main unit, but at a different tolerance that have the same dimension would be nice to identify discrepancies between the model and the dimension annotation. EG, I have a model where someone modeled using 1/2" tolerance and dimensioned such. But when the dimensions are set to 256th of an inch, a bunch of nasty dimensions present. So I am using alternate dimensions to show what the original was, and what the actual 256th is. But some of the alternates are the same as the main, so hiding the extraneous alternates would be nice for this practice.