[HELP] Connecting OP1 with external Keyboard over DAW

So my Problem is mentioned above.

I have the OP1 connected via usb to my daw/
My DAW (FL STUDIO) is connected to a midi interface/
My Midi Interface is connceted to My Arturia Keystep Keyboard via Midi/

I want to play the notes of the OP1 on the Arturia.
I selected MIDI:out as the Arturia and MIDI:in as the OP1:

Whenever I play a key on the Arturia it triggers only the channel rack in FL Studio but not the OP.
That is what I want to achieve

Here is a picture of my midi settings

Thanks for your help