Show Cards next to each other

I’ve just started using UD today and I can’t seem to work out how to get cards to show next to each other. Currently, all cards show up across the entire screen.
I watched a youtube video last night that said that the screen is 12 (units) across, so I tried to change the size to an int but it just crashes the dashboard.

I only have a copy of the sample data in there but i’ll copy below for reference.

New-UDCard -Title ‘View Room Status’ -Image (New-UDImage -Url ‘ImagePath’) -Content {
‘Quickly Check the status of Rooms in Office’
} -Size small

Whoops. Never mind… I had a error in my new-udlayout and that was breaking it.