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Providing proper online help in your plugin is required for certain component types, as described in the guidelines G108 and G147.
Enabling Online Help in a Plugin
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When creating a link to an external website, use the externallink class to ensure the link opens in a new window:
<a href="http://en.wikipedia.org/wiki/Role-based_access_control" class="externallink">Wikipedia RBAC page</a>
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