Hello,
2 Likes Hi Matt - I am sorry but I have not got that cancel button to work properly yet. It is something to do with LEAP not properly firing off events during a CPU-intensive calculation. So in general, it is not easy to stop a calculation once it has started. The method you are using of closing the optimization window is a good work around for scenarios that use calculation methodology. I will try and look at improving that code for an upcoming release, and see if I can make it work properly. I think I have learned a few new techniques since it was first implemented so should be able to make some improvements!