Thanks, this worked perfectly, just adding the F0:1:4:6 to the end of the existing M563 line. Awesome!

Thanks @aidar I'll try this today!

@dc42 will one fan pin be able to support the current of 4 fans? If not I could use it to trigger a relay that uses supply voltage but this method just seems like cheating to me haha. Ultimately I guess I could try that though. I'll try the M563 F0:1:4:6 first though, but is the colon to denote like 4-6 or is that 4 and 6?

I have 4 part cooling fans I would like to use for a single tool. I currently have them plugged into Fan 0, 1, 4, and 6. It also uses 4 heaters. The heaters and thermistors are working properly, as well as their respective heatsink cooling fans. I can't seem to figure out how to get the 4 part cooling fans to work together though. Is it possible to use a M563 command to designate these fans?

I really don't want to cheat and use the F0 port to control relays!
Any help would be greatly appreciated!