You can invite new people to manage your system directly from the DOOR ENTRY app.
From the Hamburger button at the top left of the app, click on the specific "Users" submenu
Selecting the "+" icon at the bottom right you can invite whoever you want by entering and confirming the email address he will use to create his Legrand account.
The "USERS" page display all users enabled to access your system, with the device used to connect indicated, and invited users who have not yet registered, of which there will obviously be no further indication.
The account marked with a blue star is the account that has made the Classe 300x association with the home WiFi network and the Legrand cloud.