An option to hide the DLC stuff?

I recently bought two dlc for omd1 and new traps and levels shows up.
That's quite fun.
However, as I create a new profile for my friend who wants to give it a try, he already could use new spells and traps in the first level...
I do think the original levels order can lead a new player to get familiar with the playing style.
I wonder if there's a option to hide the new stuff.
Thanks.