How do I add staff and switch who's at the register?

Tap Staff in the sidebar. The first time, set up the owner: a name and a 4-digit PIN. Adding staff and changing permissions both need this PIN, so remember it — it can't be reset.

1. On the Staff page, tap Add staff, enter a name, pick a role (Manager or Staff), and set a 4-digit PIN.
2. The current operator shows at the bottom of the sidebar and the top right of checkout. At a shift change, tap it, pick your name, and enter your PIN.
3. From then on every order, payment, and stock or points movement records who handled it, visible in the order list and detail; voided orders also record who voided them.

When someone leaves, use Deactivate this staff member: their history stays intact, and you can reactivate them later. Renaming doesn't touch old orders — they keep the name at the time.