''new_showzone: <zone> | <index> | <depth>''

Adds a new zone as part of the show [[concepts:flow]] 

  * **zone** is the name of the zone
  * **index** is the position in the show flow
  * **depth** is the number of groups contained in this zone ((e.g. 1 for experience rooms, 2 for the half-time bar, and 3 for FoH))