Here's what I did: I copied the jar file of the lostcity mod, renamed it to be a .zip file, extracted it, went inside data > lostcities > loot_tables > chests, opened the lostcitychest.json file and added some new loot that could be found (specifically items from the Additional Guns mod for MCF's Gun Mod) then i saved the json file, right clicked on the original .jar file of the mod and clicked Open with ZIP, went to the lostcitychest.json file and replaced that file with the new one that i just edited and added new loot to. Then I exited out of the zip, ran the game, the mod worked just fine however none of my new loot that I added spawned in any of the chests?
I'm not an expert in minecraft modded so I may have done this wrong, but some help would be appreciated. Thanks.
Here's what I did: