Set Hardware as Both FX Send and Audio Input

I have a hardware channel strip that I’d like to use as an FX Insert in Cubase 8.5, but as soon as I adjust it to an External FX channel, it gets erased as an Audio Input. How do I make it so that it can be both?

More detail on this: My channel strip has a preamp on the left and a compressor on the right. I can run a line into the compressor and back out of the compressor, so I can use it as an external effect for mixing. Then I can also run an audio signal into the preamp, and send it through the compressor, and out through the compressor’s output.

Hi,

Did you set only one Input in the External FX? Did you set it as a Mono FX?

You can´t, it´s either one or the other