Can't use section settings?

[Yellow_Drill]

I want to add rain but all the settings are greyed out, anyone know what to do?

[deice]

make sure to save your level as a .lvlx file, as the .lvl format doesn't support these settings.

[Yellow_Drill]

make sure to save your level as a .lvlx file, as the .lvl format doesn't support these settings.

Well darn didn't realise that, thanks for the help