In Abiquo v4.5.2+, to enable users to easily open external links, configure Abiquo to display an additional icon in the header menu.
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The external links menu will open from the icon.
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Each external link will display for specific role IDs
Abiquo will only display the external links button if the user's role has at least one allowed link.
See For configuration instructions, see Add role based external links to the Abiquo header main menu