If a player is an operator, they have access to all commands.
If a player is not OP, they must be given the permission invlock.allow to allow them to even access the help page.

The other permissions can be given using asterisks
REMEMBER TO GIVE invlock.allow

• invlock.drop.*
  • invlock.drop.enable
  • invlock.drop.disable
  • invlock.drop.status
• invlock.move.*
  • invlock.move.enable
  • invlock.move.disable
  • invlock.move.status

Instead of giving the independent permissions, you can simply give the three permissions, invlock.allow, invlock.drop.*, and invlock.move.* These three permissions will give the group/player access to all of the commands.