Administrators may add or delete members in the Nulab Account's Member page.
Select an organization under the Manage Organization in the settings and click "View members" button. You will be directed to the Nulab Account page.
Click the "Invite" button and enter the email addresses of the new members. Invitation mails will be sent to them. If you prefer to invite via other methods, click "Invite Link".
Clicking the ▽ icon next to a member's name and selecting "Remove" in the menu will remove that member from the organization.