Sorry, just saw this response. I agree with you about the inches to mm thing. When I'm using my 3D appl, Ashlar Xenon, the dimensions are very much like AI, in that I can set preferences to display them BUT even there, I'm using decimals NOT fractions........at my ripe old age, I'll continue building 3D in inches because I can visualize what a 3" diameter cylinder might look like, compare to, say, my hand BUT a 77 mm diameter cylinder doesn't mean anything to me........
Seriously, thanks for the help........just eliminated my last gripe about transferring over to Cura from Makerware......
Stay well and safe!
Steve