Alright, you are now here! Open the File Manager for your server and click the folder named "mstore", inside there, you should find a folder named "factions_mconf". You should find the configuration in there named "instance.json".
Open the "instance.json" and scroll down until you find the line named "chatSetFormatTo", beside this, you can change the chat to whatever you want! WARNING! Removing MORE than the <> can cause damage to the server! So be careful!
Since you have "instance.json" open, you can just scroll until you find " "econCostCreate": 100.0,". Change the 100.0 to whatever you want. (RECCOMENDED TO BE 0)
Pretty easy, read the instructions it gives you.
This is optional since nothing here was required by skript.