It is possible now to log in to Leon using your Microsoft credentials by configuring the 'Microsoft single sign-on (SSO)' feature.
The configuration panel can be accessed in the 'General Settings' of the admin panel under the 'Security' tab.
It contains the following options:
Once it is configured, Users will be able to log in using the Microsoft account instead of Leon-generated login and password, as per the screenshot on the right-hand side.