Hi, I want to install this plugin, however I do not want my users to be able to use it as the backpacks are now in the game. I want the plugin because I want to use it in the permission manager to see the items in their inventory & backpack. is this possible to do?

Just dont grant anyone (inc default) any permissions for backpacks, whether that will interfer with the backpacks now in game i have no idea.

This plugin doesn't give you the ability to see anything other than the backpack managed by this plugin.

This is a feature request for whatever admin panel plugin you have, not for this plugin.