A very convenient feature in the Minim mobile app is the ability to view and edit your SSID and password. When you are on the home view (i.e., the Network tab), simply click on the "Connected Devices" link under either the 2.4GHz band or the 5GHz band. This will bring you to a new page that lists the connected devices operating in that frequency band, as well as what the SSID and password are. In order to change one of these, simply tap the section you would like to edit.
You can also share the SSID and password with guests by clicking the arrow to the right of the SSID and send via text message.