With the introduction of Profiles to the Mobile app, you can switch from logged in user to a PIN authenticated profile user within the app.
Profiles are an enhanced security configuration that allow user context switching without a system password. To enhance security, profiles with PINs can be used to allow profile switching from the same preferred device with access only to the profile associated with the PIN. This discourages the ability for users to select a profile they are not intended to have access to.
If profiles are not set up the app will work with the single-user workflow by default.
To work with Profiles you will have to understand the required setups that are needed from Profiles.
Currently this feature is only in beta version.