Header visibility conditionals: arena?

[Waverian]

Is there a custom visibility conditional to show party frames in a party or 5 main raid (i.e. arena), but not in a raid otherwise? I don't see anything that applies in the predefined ones nor can I think of one offhand at the moment.

[Sojik]

SpawnHeader('oUF_Party',nil,'custom  [group:party,nogroup:raid][@raid6,noexists,group:raid] show;hide')

and

SpawnHeader('oUF_Raid'..i,nil,'raid10')