Hi all. Please help me add additional custom permissions.
For example, the backpacks.size.X permission is standard permissions, but they are not visible in the configuration file. How to add more additional custom permissions for VIP? For example, according to standard permissions, players can buy slots in the game store, and immediately make 4 permissions for VIP for the number of slots

More precisely, how to create a VIP permission that will include several plugin permissions?

This is explained in the documentation.