Ha, yeah, that's annoying - it likes to create the sub-menus about 10 pixels away from the main menu, so when you move the mouse from the initial menu to a sub-menu, you move over the viewport and the menus disappear... You can get round this by right-clicking nearer the top of the screen - it seems to create the menus…
Learn that it is not like Max's tools! What I usually do for arms and legs (or organic cylindrical vagueness), is select all the polygons in the limb, apply Planar Mapping (doesn't matter what direction). Then select the row of edges you want to be the UV seam, and in the UV layout window, go to Cut UV's. Then select all…
Hm. Is Map UV Border the tool I'm supposed to use? I've tried that a few times and it seems to be giving me a lot of distortion. Admitedly the leg I'm working on is a bit curvy so perhaps I should break it up a bit more. I'll continue experimenting. That'll be a great tip once I work out how to use it properly. Thanks One…