The Easy Door controller offers two ways to manage keys. The local mode does not require any extra equipment, but has some limits.
The controller manages two types of keys: resident or master keys. A resident key opens the door and the master key is used to add resident keys.
If you manage your site's Access Control on-site, and you only have a few users and therefore a few keys, you can use the Easy Door controller in local mode.
Please see below a step-by-step guide for how to add and delete both resident and master keys: