It is not recommended to use a single user for multiple people working in parallel as this may cause issues with people overwriting each other's work. For collaborative editing you should always create one user account per person. This way Kirby can keep track of who is editing what and you can configure user permissions if you need to down the road.
Open the menu and click on "Users". You will find the "Add a new user" button in the top left corner, which will take you to a fresh user form. Fill in all required information and hit "Create" to add the new user.
On the "Users" page, click on the option icon next to the user to open the dropdown with options for the user.
Users are identified by their email address by default, but you can also assign a more recognizable name. That can be a full name or just a nick name. It's up to you and your team.
Passwords must be at least 8 characters long. Make them as strong as possible! We recommend 32+ characters, highly random passwords and a password manager to keep track of them.
All user accounts except the last one can be deleted.
On the user's profile page, click on the profile picture to upload or change the image. The uploaded image should be square. Otherwise it will be cropped from the center. Profile images must not be bigger than 2000 x 2000 pixels.