How do I set up loyalty rewards and extras?

Rewards and their menu links, 18+ rewards, rewards at the Order & Pay checkout, the join bonus, earn multipliers, the public earn line and enrolling on the spot.

Part of How do I set up a loyalty scheme?. This part covers the extras: the join bonus, earn multipliers, rewards and their menu links, rewards at the order checkout, the public earn line and enrolling a guest on the spot.

Extras worth knowing

Related: How do I set up a loyalty scheme? · How do loyalty members earn stamps and points? · How do promotions, deals, rewards and gift cards work together? · How does the Scanner work at the venue?