Cubase EL 7.07 Best way to use external reverb?

In Cubase Elements 7.07, what is the best way to setup an external reverb. There doesn’t seem to be a way to make an insert. Currently, I’m using a UR44 and using outputs 3/4 (Mix 2) as a send and returning through inputs 5/6 as an audio channel in monitor mode.

This can cause some unexpected feedback loops, there must be a better way. I’ve been through the Elements manual and can’t find a word. Thanks