Sorry to be dense but today was the first time I got a documents used flag and, still being at a relatively early stage of learning (and starting to like) F360, it got me worried about whether all this effort may be in vain. I'm never going to be using F360 professionally, strictly as a hobbyist, and over the course of my current project I'd expect to generate maybe 100 - 200 designs. However I doubt I'd ever need more than 2 or 3 open simultaneously. Does the limit rule just mean I can only have 10 editable designs on the go at any one time but can switch docs from read only to editable and vice versa at will, i.e. the limit will only be a minor inconvenience if that, and it won't lock me out of editing something classed as read only. (I think that's what it means but feel I ought to make sure).