Doom builder help

I may sound like a noob, but how to you name the level and choose the level type.

In your level header:

"levelname = (Name of level; 'Zone' is not needed, as it's automatically added)",

and,

"type of level = (Total of certain numbers, that represent different modes/gametypes, added together)"

You could have just read the Wiki. There is a page that explains this.