Is anyone else able to map for CSS?

Hey, I’ve been meaning to get back into mapping, and planned out a level on paper for a CSS level, only to find that it isn’t an option on any engine version…

I have the game installed and it runs properly, and I tried a reinstall. Have I missed something? Is it related to the css beta? Sorry if this seems dumb, but I haven’t been able to keep up with things lately.

CSS is using 2009 engine.

I know. I said it wasn’t an option for any of the engine versions.

Although, now it seems the issue is on my end. What do you think could be causing it?

Reset game configs.