I love the mod, but currently, you can only select one profile, and only cities of that type will spawn, which makes the world gen of Lost Cities pretty monotonous. I think it’d be fantastic if you could add an option to use all profiles, so that each time a city is generated, its type (ancient, new, ruined, etc.) is randomly picked.

I second this. I want a tall, large ancient atlantis wasteland
all the configs should be randomized everytime a chunk is load instead of the same for every chunk
If someone get share their custom settings that would be great

That's technically not possible really. Profiles have a world wide effect and can't be per city. However you can use different city styles. Currently cities in deserts already use another style. It's possible to make datapacks to add even more variety

Why did you post the same comment again?

??? I have no clue what that happened? I wasn't even doing github things 3 minutes ago? Weird