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The showAllPortlets preference is false by default. This preference allows the marketplace to show all portlets regardless of permission to subscribe/manage. If set to false or the preference is not includeincluded, it will default to show only the portlets that you have permission to subscribe to.
The showManagedPortlets is true by default. The This preference will add to the displayed set, portlets that a user can manage. Note, that if showAllPortlets is true, the showAllPortlets set will already include any managed portlets.
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