Hi, having done a bunch of unwrapping of mechanical things the last week there are three little things that the texture editor could need (there are a few big things also but I'm trying to be realistic.)
1) Comment out the line of code that asks me if I want to swap out the texture with the stamped one after stamping out the UV's. I think I have spend the last 10 years saying no here with no way to stop it from always asking. 2) In addition to Island filter add an object filter. So when you select a component it selects all the others belonging to that object (connected or not). This would be useful when laying out a bunch of overlapping objects into one patch where one can keep the islands from each object close to each other. Right now if I go to the viewport and select the object I of course lose all the others and there is a lot of de- and re-selecting. Locking the selection locks it at component level and then that doesn't help sync either. 3) Beyond that if you feel the need to really impress ;-) then a re-scale button would be great where all selected poly's are re-scaled proportionally with respect to their surface area. Having a preference for absolute scaling here would be great where you set 1 SI-unit^2 = 0.1 UV-units^2 for example and it would scale it up accordingly. Would make getting the scale right for cases where it's important easy. (1m2 carpet texture, scene in decimeter scale and then the uv's scale properly on the floor) Thank you for listening, Fabian