The hq help tag currently has two attributes: (they're all not mandatory)
1.context (default:true) true means it will generate the doc link according to the page context. Otherwise, the help link will point to help homepage. (Currently no help tag in the system has context set to false.)
2.key: It's the key that developer want to append to the help link (for sure, .html postfix will come after this).
Take plugin manager help link for example. The help doc link for plugin manager is:
It's using <hq:help />
The help doc for the agent sync status dialog in plugin manager is:
It's using <hq:help key='.Status'/> which will append ".Status" to the plugin manager help link.
However, if we want to make a help doc link like this
We can use <hq:help context='false' key='my-custom-link'>