Discount presets
Discount presets are the Discounts your venue has prepared, so nobody types a percentage at the table. Menu → Discounts lists them: their name, the Discount, and whether Waiters may give them.

As the page says, Only a Tenant admin can change the presets. Ask yours for a new preset, another value, or to let Waiters give one.
Example: Beizli Muster has two. Stammgast 10 % (Regular 10 % in the English staff app) gives regulars 10 %, and Waiters may give it. Personalessen (Staff meal), 50 %, is for Managers only.
Give a preset
Section titled “Give a preset”In the staff app, you give a preset like a Waiter does (Discounts), but you may give every preset, also those Waiters may not use.
Example: after her shift, Silvia eats a cordon bleu at the Stammtisch. Michael opens her Tab and gives Personalessen; Silvia could not have given it herself.
A Discount keeps the name and value the preset had when it was given; a later change to the preset does not change it. A Discount of any other amount is a free-form Discount (Discounts, Corrections and Refunds).