Backup console as wing?

Hi,
Been reading this forum for a while but this is my first post, just took delivery of 2 full boars and am very happy about this! They've both gone straight out on a month long run of shows, one as a backup desk. Some of the shows are going to be busked, but since we haven't yet got any wings available, we were wondering could we network the desks in such a way as to have separate playbacks on each, while using only the main desk's dmx outputs?

Been searching quite a bit and haven't found anything, so guessing it's not possible, just looking for a definitive answer really, or if there are any known workarounds.

Cheers, very useful forum by the way.
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