can extra displays be added for more taps, each scree showing different set of taps?
Yes! You can click on the display in your dashboard and select the taps you want to show up on a particular display. I utilize this for my Basement Bar area and for my Garage Kegerator!
I can’t find the option where you get the choose the which tap you can select and mark for those two screens.
Go to Displays on the left side of the menu. Then click on the display you want to edit. From there you should see the Taps section where you can select specific taps to be displayed on that particular display.