There are instructions on the plugin sales page :
Reminder :
If Backpack entity model (false = Small stash , true = Backpack) = false, If the admin uses F3 to switch the perspective, it will feel pressed by something,Also sinks when swimming
The problem of blocking bullets is reasonable, because he is an entity, if the backpack is attacked by bullets, it will disappear, or it will be unreasonable to transfer to the player,
Transparent sphere, only enabled for players using non-medium sized 3D backpack models, as it is needed to scale the backpack model size
If it is a medium sized 3D backpack model it will not show the translucent sphere
When using building copy, you can enter /bbset to turn off the display of the 3D backpack model
If you are a PVP server, it is not recommended that you give players 3D backpack models,
But it still has 9999 grid backpack capacity worth using