How can I use Serum in mono?

Hello,
I'm trying Serum Demo, and perhaps my question is ridiculous but I would like to know how to use Serum in mono with Logic Pro X, because in my audio units list my other synths like Spire or Massive are available in Mono or in Stereo, but Serum is only available in Stereo. 
Besides, I'm trying some Mainroom Warehouse Serum patches and sounds nothing (Factory patches sounds great).
Kind Regards,
Nando

Hi,

Serum output is stereo only.  You can put Logic utility->gain after Serum if you want to guarantee mono signal.

You can't load 3rd party presets into the demo unfortunately because they were made with features added since the demo.   The demo will be updated soon.