try this

# Group inheritance
#
# Any inherited groups prefixed with a g: are global groups
# and are inherited from the GlobalGroups.yml.
#
# Groups without the g: prefix are groups local to this world
# and are defined in the this groups.yml file.
#
# Local group inheritances define your promotion tree when using 'manpromote/mandemote'
groups:
  Default:
    default: true
    permissions:
    - essentials.sethome
    - essentials.home
    - essentials.afk
    - essentials.msg
    - essentials.spawn
    - bukkit.command.tell
    - bukkit.command.help
    - bukkit.command.me
    - jail.usercmd.jailpay
    - jail.usercmd.jailstatus
    - jail.openchest
    - -bukkit.command.kill
    - -essentials.nick
    - jail.usercmd.jailstatus
    - jail.usercmd.jailvote
    - jail.usercmd.jailvote.player
    - essentials.afk.auto
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.delhome
    - essentials.help
    - essentials.mail
    - essentials.mail.send
    - essentials.me
    - essentials.build.*
    - assassin.help
    - assassin.kill
    - assassin.revenge
    - assassin.wanted
    - assassin.hunt
    - assassin.contracts
    - assassin.cancel
    - assassin.expired
    - iConomy.access
    - iConomy.list
    - iConomy.payment
    - iConomy.rank
    - Signshop.Signs.*
    - Signshop.Permit
    - ultimarket.buy
    - ultimarket.sell
    - ultimarket.price
    - ultimarket.sellall
    - jobs.command.browse
    - jobs.command.stats
    - jobs.command.join
    - jobs.command.leave
    - jobs.command.info
    - jobs.command.use
    - jobs.command.admin.stats
    inheritance: []
    info:
      build: true
      prefix: '&b[Regular]&b'
      suffix: ''
  VIP:
    default: false
    permissions:
    - essentials.keepxp
    - essentials.worlds.*
    - essentials.msg*
    - essentials.chat.color
    - essentials.chat.magic
    - essentials.joinfullserver
    - essentials.nocommandcost.all
    - essentials.recipe
    - essentials.sethome.multiple.vip
    inheritance:
    - Default
    info:
      build: true
      prefix: '&a[VIP]&a'
      suffix: ''
  Moderator:
    default: false
    permissons:
    - worldedit.*
    - antix.*
    - jail.*
    - -jail.cantbejailed
    - -jail.jailvoteimmune
    - getinventory.*
    - iConomy.*
    - Signshop.Admin.*
    - ultimarket.setprice
    - jobs.*
    - towny.*
    - essentials.*
    - '*'
    inheritance:
    - VIP
    info:
      build: true
      prefix: '&1[Moderator]&1'
      suffix: ''
  Admin:
    default: false
    permissions:
    - '*'
    inheritance:
    - Moderator
    info:
      build: true
      prefix: '&c[Moderator]&c'
      suffix: ''
  Owner:
    default: false
    permissions:
    - '*'
    inheritance:
    - Admin
    info:
      build: true
      prefix: '&4[Owner]&4'
      suffix: ''
  Undercover:
    default: false
    permissions:
    - '*'
    inheritance:
    - Admin
    info:
      build: true
      prefix: '&b[Regular]&b'
      suffix: ''