matrix count distinccount values

Hi Parry

Thanks for your advice. I made a dummy file. I don't know how to attach the file so I made some printscreens maybe that helps:

Model

Desktop

Measure

For this matrix I made use of a measure distinccount with a crossfilter in it. 

How can I add the values to a correct total? now everything is 1, While that is

not always correct. In case of row 2 (B) it needs to be 3.

thanks in advance!