Just wondering how to setup a repeatable quest with command reward since I can't find any detailed info on this anywhere.

Could you help me fix this to get it to work?:

quests:
Fighter:
name: Fighter Rank
ask-message: Would you like to learn the ways of the fighter class? I'll teach you for a small fee ($50).
finish-message: Thank you, now let the training commence.
redo-delay: 0
requirements:
quests:
- (prereq fighter quest name)
money:
- 50
remove-items:
- true?
fail-requirement-message: ??? Unsure what to put here since there are 2 possible fails; money and prereq quest.
rewards:
command: /pex {user} group set fighter

Edit: Also is it possible to make it so if they already are in the group (fighter in this case) they can't redo this quest?

Just realized this is all done via in game commands. my bad, too used to doing things via yml files.