If your Deli is running Department Type 'Fast Food', then click 'All Tickets' on the left side to see open tickets.
If you have no department type set, then select an item/s, then Select Table to select a table to add the item/s to.
But you will need to make sure that in your Deli Department your POS Table View is set to All Tables or atleast one table view for the Select Table button to appear.