How to add device correctly?

How to add device correctly?

Hello!

I downloaded trial version of NetFlow Analyzer and trying to do a first steps. I asked our network guy to set up to send NetFlow from specific device to NetFlow Analyzer Collector for the testing purpose, but software asking me to add device and i confused a little. As far as i understand we must set up NetFlow only on the device side, but what cridentials we need to enter in "Predefined Flow Export"? Administrartors account or User, or read only? Is it nessecery to do this? Can we just only add device and set up NetFlow on the device itself?

Thank you!