Power House style team size instance scaling selection for all instances

sigmaseven0

Let us set the instance team size scaling independent of actual team size the way you can in the Power House.

• Being able to enter an instance solo and scale the mobs to spawn for a 5 man team is almost necessary for the level of power many free form heroes posses.
  
• If I could do this, I might actually bother to do my Unity missions.
  
• In a game where players are vastly more powerful than NPCs (like Dynasty Warriors) you need to be able to fight large numbers of NPCs for combat to feel satisfying (like Dynasty Warriors).
  
• The tech already exists in the Power house, set it free in the game world as an addition to the difficulty settings.
  

@crypticarkayne @ladygadfly @kaizerin