Dual head

[walker]

Since I have dual head printer (and next one is building) I'd like to know if somebody have some usefull settigns for changing heads. I was trying to experiment but with poor success. The big problem for me is inactive head and retraction (I am using pillar during change to prepare next head)
Thanks all for tips or recommendation.

[BMMal]

What firmware are you using? I have a good albeit complicated explanation of how I use the custom Gcode tabs in Kisslicer along with firmware retraction, and tool change scripts of Reprap Firmware here: https://www.duet3d.com/forum/thread.php?id=3121#p28273