Table based on one data service but filtered by a second data service

Hi,

I'm fairly new to VC and have got comfortable with a few simple scenarios. However, I'm trying to apply some fundamental logic that must be possible and I'm guessing straight forward.

I have a data service that contains document type master data that comes from system A. I have a second data service that supplies a list of the document types that a particular user is able to view. This comes from system B. I want to be able to display the document type master data in a table but only the document types the user is allowed to see. Both data services contain a document type code.

If anyone can point me in the right direction I would really appreciate it. We want to use VC on my current project and this is the last piece of functionality I'm trying to prototype.

Many Thanks

Gary