Final Fantasy Hacktics

Heyo homies,

I'm looking to create a random battle (a specific floor of the DD) that only allows the player to enter one unit into battle, as part of a duel scenario.  I've run across a random battle editor here, but my cursory review of it at least did not make this capability obvious. Am I missing something there, or is there another method to unlock this madness?

Shankya

Its in the attack.out gui squad editor. Lets you choose how many characters can be used in formation.