USER YML Help! how do i mod, admin people etc!

Code:

users:
    Herpina:
        groups:
        - Moderator
        permissions:
        - herp.derp
    '62353535':
        info:
            prefix: '&b'
        permissions:
        - hawaiian.pizza
        groups: []
    Derpina:
        info:
            prefix: '&4'
        groups:
        - Admins
        permissions:
        - -derp.derp
    NBAPwns13:
        permissions: []
        groups: []
    TurtleZz:
        permissions: []
        groups: []
    Deoragekiss:
        permissions: []
        groups: []
    KashmirSucks:
        permissions: []
        groups: []
    AvCxNiiNja:
        permissions: []
        groups: []
    xDynasty:
        permissions: []
        groups: []
    jake9262:
        permissions: []
        groups: []
    fdy:
        permissions: []
        groups: []
    KingOFKnives:
        permissions: []
        groups: []
    xDynasty96:
        permissions: []
        groups: []