To add a new user, you must be an administrator. If you have admin rights, you can issue an invitation by following these steps:

• Log in to KOS Studio.
• Click the Settings icon in the upper-right corner and select User Management. If this setting is not available for you, you are not an admin, and should reach out to an admin of the organization to invite users instead.
• In the User Management window, click Invite User (upper-right corner).
• Enter the new user’s email address in the pop-up dialog.
• (Optional) Grant admin rights if required.
• Click Invite to send the invitation.

Important Notes

• Each invitation is valid for one use only.
• Invitations expire after 5 days if not accepted.
• The invited user must have KOS Studio installed to log in.
• The user must be assigned to at least one active project within the organization to gain access.

You can learn more here: User Management