M605 - Multi Nozzle Mode

control Set the behavior mode for a multiple nozzle setup MULTI_NOZZLE_DUPLICATION|DUAL_X_CARRIAGE

Set the behavior mode for multiple fixed nozzles such as a Dual Extruder or DUAL_X_CARRIAGE machine.

This command behaves differently for DUAL_X_CARRIAGE vs. MULTI_NOZZLE_DUPLICATION:

For MULTI_NOZZLE_DUPLICATION the S2 parameter enables duplication mode. Any other value disables it.
For DUAL_X_CARRIAGE, this command sets the Dual X mode. See the description of S below.
For Mirrored Mode: M605 S2 R0 X<distance> and M605 S3.

M605 [E<index>] [P<mask>] [R<temp>] S<0|1|2|3> [X<linear>]

`[E<index>]`	Last nozzle index to include in the duplication set. 0 disables duplication. (Requires `MULTI_NOZZLE_DUPLICATION`)
`[P<mask>]`	Bit-mask of nozzles to include in the duplication set. 0 disables duplication. Bit 1 is E0, Bit 2 is E1 … Bit n is E(n-1). (Requires `MULTI_NOZZLE_DUPLICATION`)
`[R<temp>]`	Temperature difference to apply to E1. (Requires `DUAL_X_CARRIAGE`)
`S<0\|1\|2\|3>`	Select the pin to set for all specified axes. `S0`: Full control mode. Both carriages are free to move, constrained by safe distance. (Requires `DUAL_X_CARRIAGE`) `S1`: Auto-park mode. One carriage parks while the other moves. (Requires `DUAL_X_CARRIAGE`) `S2`: Duplication mode. Carriages and extruders move in unison. `S3`: Mirrored mode. The second extruder duplicates the motions of the first, but reversed in the X axis.
`[X<linear>]`	X distance between dual X carriages. (Requires `DUAL_X_CARRIAGE`)