Combining Zones on Konnected pro interface kit

I have just finished installing my Konnected system to my currently DSC PR1832 alarm panel and love it on smartthings, however…
My issue is that I am currently using 11 zones for my DSC and the Konnected panel supports up to 12.
I would like to Arm/Disarm remotely & view alarm status remotely. In order to do this my understanding is that I’ll need 2 open zones and I only have one.

My alarm is currently wired with zones 4, 5, 6 all being windows in my basement separately. Would I be able to split a wire between the 3 and use one zone on the Konnected panel… without separating them on my DSC panel.
Any alternatives I can do before having to purchase another board?