From the TCM build guides re:Commisioning and Hotend Fan Checks this was in the comments: "For me clicking on the tool name in the heater column and switching it to active caused the tool to be picked up (i.e., toolchange) rather than just turning on the heater, not sure if I am doing it wrong. Obviously it still works for checking the fans though. Paul Arden - 09/12/2019 You need to untick the boxes in the UI settings which run the toolchange scripts within the UI. Greg Holloway" I've upgraded to DWC2, I'm running RRF 3 and I know that I unchecked boxes somewhere on disabling Pre-Tool macros, (but I can't remember where or how I got there). I cannot find anything that lets me uncheck the toolchange scripts or the preTool macros now. I know the fans work because I can run them individually (again, after the tool has been picked up) but at the moment I cannot Hot Tighten the nozzles because the TC pick up the tools every time the heater is set.on. What am I missing?