After an excellent and most educational workshop on Therion run by Andrew Atkinson last weekend, I have finally started to get my teeth into the program. What I am attempting to do is find a way to convert surveys drawn up in other software into Therion projects without having to redraw everything. My current aim is to get the passage walls in so that I can build various models from my surveys. So far I have learned enough to get the passage walls from Inkscape into a th2 file using the Inkscape plug-in. The difficulties now come in deciding how to break these very large surveys up into managable size pieces. The XTherion map editor is unmanageably slow when I import the entire cave into a single th2 file. Right now I've not got specific questions and am finding my way OK. But I wonder has anyone already written any help on how to do what I am trying to do? Especially when to split parts of the cave into separate scraps, and how to make sure that maps drawn in separate th2 files join smoothly in the model? Some tips and guidance would be very useful to avoid pitfalls. So if someone can point me at some help (I've not managed to find any on the wiki) that would be great. If none exists then I will start making notes so that I can contribute what I learn to the wiki as an example. Footleg