This is possible to a degree by using in-game commands made available by enabling cheats. However, this command won't necessarily change a biome's blocks, but an area's biome classification.

In addition, another way players can find biomes inside Minecraft is by using console commands. Here is an in-depth look at each of the methods that they can use to find the perfect biome in their ...

We can use this structure to our advantage since it is found in the Deep Dark biome. Players can type in the command ‘/locate ancientcity’ and teleport to the coordinates provided.