To add and delete users and user groups, use the User Management panel.
To grant users or user groups the permission to view or edit
In the User Management panel, click the button to display the Add New User panel.
You can define a default user group that all users belong to at any given time from the System Options panel.
To add another user or group, click the Assign User or Assign Group blue button and repeat steps 4-5.
Also see About Biolucida users, Organizing images, Biolucida for administrators