Writing your first ticket
What a ticket is, how the board turns into one, and getting it printed.
A keno ticket is a bet on numbers. The customer picks some, you mark them on the board, and the terminal prices what you marked. Everything else in this job is a variation on that.
The board
Eighty numbers, eight rows of ten. Tapping a number selects it. Tapping it again puts it back. Nothing is committed while you are still tapping, so there is no harm in changing your mind in front of the customer.
Marking the group
Selected numbers are not yet a bet. Mark Group closes them into a group and the price appears. If you press Print without marking, the terminal marks the group for you rather than refusing — which is why an experienced writer can go from tapping to printed without touching Mark Group at all.
A vertical
Customers ask for shapes as often as numbers. A vertical is a full column of the board. A horizontal is a full row. Your first job below is a vertical on Regular Keno, printed.