Patient profiles can be marked as "Archived" to hide them from the main Patient list. The patient data is still saved, and accessible, but the profile is tucked away. Here's how it's done:
From the Patients list screen, simply find the patient entry you want to archive. Swipe the entry to the left to reveal the "Archive" button.
Tapping the "Archive" button will mark that patient as "Archived".
To access the list of archived patients, tap the selection toggle at the top right of the Patients list screen marked "Current / Archived". This will toggle your view from the default "Current" to the "Archived" view. Tapping the toggle again will return you to the "Current" view.
You can also Unarchive a patient in the same way, but this time from the "Archived" view. Simply find the archived patient's entry, swipe it to the left as you did before, and tap the "Unarchive" button. This will place that patient back on the "Current" list.