Thanks for the comments. I'm not keen on Fusion360 as a) the internet in the workshop is pants (MBB only) & b) some of the work I do has a commercial element and stuff will need to be shared - and I can't justify a commercial licence. One facility I am looking for is a decent chamfer utility (arbitrary angles and deep, not just the length of the cutter), and the only app. that I've found that does that well is Vectric Cut2D - but it's very limited in other ways.