To invite new contact as an Admin to Croogloo, click on the contact icon on the top banner, then "Add Contact".

This will launch the contact entry form:

After filling in the form (multiple email address are accepted)

and selected their distribution lists

click Invite to Croogloo at the top

Set Security Group for your contact to ADMIN:

Confirm your selection:
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An email invite is sent with a link to get them launched.