Has anyone done any work on the task of converting existing Tunnel sketches (xml) to therion .th2 files? CUCC (Cambridge Loser expeditions: https://expo.survex.com) has a huge investment of tunnel drawings (55km of cave?), but because there are no elevations for any of this and Tunnel is a bit niche we are pondering using therion more. If a semi-automated conversion of the existing drawings was possible, that would help enormously. It seems like it shouldn't fundamentally be too hard to turn xml lines/beziers into therion lines/beziers, and map the line types, but there are issues with how to allocate lines to files and how to get the scaling right. I've not done anything at all about it yet, but thought I'd check if anyone else had before having a proper look. Thoughts? Wookey -- Principal hats: Debian, Wookware, ARM http://wookware.org/