Query speed on MonetDB with 4-5 users

Hello,

We have just started using MonetDB in production and can I start by saying its a pretty impressive database. We are having a problem with query when we have 4 -5 users running reports and I wanted to know if anyone could recommend some optimisation tips. On particular one is multiplex-funnels. I can't find any documentation on how to create it. I read some where that it can be used to replicate data between two servers. It would be great to get some guidance on how to do this.

Kind Regards