[PVE-User] More than 1 virtual NICs in guest machine

[Max Jakob]

I use proxmox 1.9 and I like it.
Now I want to assign 2 or more virtual network interfaces to the kvm 
guests (The proxmox host has more than 1 pyhsical NICs, they are 
configured as bridges vmbr0, vmbr1,..)
I found no way to assign virtual nics of the guests to the different 
bridges. Is it possible?

Thanks in advance.
\Max