Every commands in the Pixelmon commands list works in ForgeEssentials EXCEPT for /checkspawns. By default it says "You do not have permission to use this command" but after allowing the /checkspawns node, it changes to "You must be an OP or have permission to perform this action." for the members of the group I created.
Using ForgeEssentials
1) "/p group gName create" <---------------------------------- made a group, let's call it gName
2) added members in the group
3) "/p group gName allow command.givemoney" <------ works
4) "/p group gName allow command.checkspawns" <-- doesn't work
The message "You must be an OP or have permission to perform this action." persists even after I allowed the following nodes.
1) pixelmon.command.checkspawns
2) pixelmon.command.checkspawns.normal
3) command.checkspawns.normal
4) pixelmon.checkspawns.normal
It seems like there's an extra layer of security, probably made by the Pixelmon mod, because even after putting someone other than myself into the _OPS_ group (already-created group of ForgeEssentials), they can do every command like /gamemode 1 and commands in Pixelmon EXCEPT /checkspawns because oddly enough, it still says "You must be an OP or have permission to perform this action."