Yamaha PSR E423 as MIDI controller ?

Hi there, I'm new to PreSonus.
I use a Tascam 122 as audio interface
With my previous DAW, I've been using a Yamaha PSR E 423 as Midi controller, directly plugged into the PC via USB. The Yamaha only has a USB port, no MIDI out. In the Exteal Device setting, PreSonus doesn't identify the Yamaha, only the Tascam. How can I go about this?

Any help will be greatly appreciated. Thanks