How to I give someone specific permissions on my Minecraft server?

I have tried everything I have thought of to give myself and other people permissions. To make someone be able to warp or get a kit, I have to op them! Is there another way to give people specific permissions without giving them all the other permissions?

Download the plug-in groupmanager (wiki link provided) Group Manager and install it for your server, the plug-in is to big to describe in one answer but the basic idea is there is different groups (newb, player, mod, admin and owner) each group has its different OPs such as /kit for newb and player /kick for mod /ban for admin and so on. Hope i helped!