Hello, I have 2 issues that im sure someone has ran into before.... 1) Lower the bed by 5mm from the current Z position. (I currently have G1 Z5 F180 in the tool change script which I know now is absolute so anything over 5mm results in the nozzle being slammed into the print). Im using S3D as the slicer currently so was looking at the "current_z_position" variable but need "current_z_position +5" somehow. 2) Stop the cooling fans during tool change and resume the fans after the purge of Xmm. When the fans are off, the filament being purged falls strait, with the fans on it curls up and has a chance to not get wiped of dragging the curled up filament extrusion into the next layer of the print. I was looking at M106 S0 and M106 Rxxx but not sure if this would work or what the value of xxx should be as it needs to be a variable I guess for the last known fan speed. I found by googling someone stating S3D supports "[fan_speed_percentage] & [fan_speed_pwm]" but not sure if that would work for M106 R[fan_speed_percentage]? S3D slicer, Duet (RepRapFirmware) brains. Any help appreciated.