mapping two DMX channels to a single fixture fader?

[drscoop]

Is is possible to map two single DMX channels to a single fixture fader?  (Other than by writing a bespoke fixture profile, perhaps?)

I have a four channel DMX dimmer in an upcoming rig, set up as 4 x generic single dimmer channels starting @ DMX address 255 - chs 256 and 257 will control two lamps within an old ripple effect, and ch258 will control motor speed. 

I'd ideally like one channel fader to operate both dimmer channels together (i.e. bind together DMX 252 and 253), and the adjacent channel fader mapped to the motor @ DMX 253.  The dimmer is only fairly low ampage so I can't just Grelco the two 15A tails together on a single channel - I wondered if I can do this virtually on the desk? 

[kgallen]

Sure. See "Add as additional" on this manual page:

https://www.zero88.com/manuals/zeros/patching/fixture-schedule/edit-dmx-address