Multiboxing for 2 but not exactly?

[Bokrael]

Hi there. I'm multiboxing WOW with 2 accounts in Classic and Retail.

I'm using a software to multiseat 2 users on same PC with Aster https://www.ibik.ru/

And im using a Switch KM to Keyboard (aimos) and 2 mouses, works fine, and it's a cheap setup.

I already found that software but as far as I know it you need two monitors to play with it but Im looking a way to do it on a single one. Is it possible?