No prob! Just trying to learn the script adder myself and came across your thread. The guys at S3D are using your thread for the filament changing reference so they must like your info! I'm coming over from Cura when another person posted something for that software in terms of a plug in. That works great but I recently purchased S3D for the features of better support customization and the most important thing that sold me was the tweaking option of process at different layer heights throughout the print (.1 for fine detail and .2 / .3mm for the stuff that doesn't much mattter). Only had my Di3 for a little over 1/2 year so still learning. I use Solidworks for my designs. Thanks again.