How to set the purchase price and challenge mode?

Hello, regarding the Raidable Bases plugin, I have already purchased Raidable Bases 3.1.9 and Raidable Bases (Tier 3 Package) - Plugin sold alone. Bundle available. 1.0.9. How do I set up my player-specific base that can be purchased with in-game currency? Is there a detailed setup tutorial? I have reviewed the setup instructions multiple times but still do not understand how to set it up. Could you please provide more detailed instructions?

heya, you just need to enable a cost. 

you can use economics, server rewards or a custom cost like scrap.

this is in the config file