So I just created the first world map for the Terraria workshop. It was the one with overhauled biomes and structures. Unfortunately I couldn't figure out how to update my world map because I changed things to make things fair for the playthroughs. Help would be appreciated.

I've been searching in the Google search for figuring out how to update Terraria world maps but I couldn't find a proper result. In fact, I'm new to working with world maps for Terraria so please kindly leave any ideas to help if any of y'all are the workshop creators. And please don't use languages such as swearing as they tend give me a little panic attack due to some personal issue I have, Thanks.