Gamemodes can have a server.cs, which is executed when you start the gamemode. You can't write any code into the gamemode.txt.
Iirc you can have gamemode properties set in gamemode.txt so maybe you can have the user set the values in the gamemode.txt and process it all when the gamemode object is created.
Thanks guys, I'll include a server based function that can be executed in the Server.cs file for gamemodes. Presets would have to be loaded on the server-side, but that shouldn't be too much of a hassle to setup.
Update: Build Loading is now 95% done! Builds can be loaded onto floating islands (in addition to the terrain, underwater and the water surface). Detail bricks will automatically avoid builds once loaded, and you can also enable details (from the default biome) to generate on floating islands.
A lag preview graph has been added to the preview window, which will show (in milliseconds) how long each chunk takes to calculate and render. In addition, the depth simulation option for previewing is now working.
If all goes well, the Beta update should be rolling out to the testers by next week!Edit: Oh, and I'll be increasing the cap for the amount of testers to 40, since the next 2 updates will be the most crucial for testing. So if you would like to reserve a spot, let me know!