In all my searching, I just found out that this Durst Multigraph is just a renamed Ilford MG600 enlarger.

So...you can use this manual too that Ilford easily provides on their site (although it does not provide the extra paper settings for anything other than Ilford products). Still it is a guide for use of the enlarger and explanations of getting going.

http://www.ilfordphoto.com/Webfiles/...9161818802.pdf