IDT: multisource universe with function module and BEx query?

Hi,

I would like to create a new multisouce universe in Information Design Tool containing a function module from an R/3 system and a BEx query from a BW system.

So I created a relational connection pointing to R/3 and one OLAP connection pointing to a certain query.

Some questions here:

1. can I access a function module? I don't see it anywhere...
2. When I create a new multisource data foundation I can't select the OLAP connection - it's not in the list although I exported it to our BO server.
3. When creating a new system-DSN connection on my local workstation: is it necessary to also create this on the BO server?

Thanks for your help!