How do I put multiple players as admins in the BungeeCord config?

Hello, I was wondering how I can have more than one person as an admin. I tried this but it didn't work. groups:
ItsGianni:
- admin
TGI_CN:
- admin
disabled_commands:
- find
player_limit: -1
stats: 23c2d78a-8ee1-44f7-9049-2da2419b70c6
permissions:
default:
- bungeecord.command.server
- bungeecord.command.list
admin:
- bungeecord.command.alert
- bungeecord.command.end
- bungeecord.command.ip
- bungeecord.command.reload
listeners:
- max_players: 500
fallback_server: hub
host:...

How do I put multiple players as admins in the BungeeCord config?