Here you can view the frequent asked questions for Player Auctions, it might answer your question!
You will need a permissions plugin, and give them the permission
pa.limit.<auctions>. For example:
pa.limit.1- can sell one item.
Please note if you're using power ranks, this permission WILL NOT work. You will have to use an alternative permissions plugin like LuckPerms or ask the developer of power ranks to fix effective permissions.
Yes, you can. You can go into the folder,
/guis/category.ymland go to the bottom and manage the categories there.
There is a feature disabled by default the empty lines will automatically be removed in the description, you can disable this in the