This is a resource so you can make backpacks on your minecraft server! All you have to do to make a backpack is:
1. Hold an item
2. Do /setbackpackitem <Name you want for the backpack>
3. Do /setbackpackname <Backpack name> <Name displayed in gui>
4. Do /setbackpackrows <Backpack name> <Rows (1-6)>
And you have a backpack! The contents in it are universal. For example, if you have a golden backpack, the contents stored in that backpack will always be the same if the opened backpack is a golden backpack.
There is a version you can find made by me with backpacks having ids, where you can have a certain amount of one backpack. Link:<not created yet>