Add a similar article for "magic wirds" defined or utilized by SMW
> It would be good to have a "Magic words" reference article, mimicking this one.
I think it is not really worth doing so since SMW only provides one behaviour switch called
__SHOWFACTBOX__ to be used in special circumstances.
> Also still i'm not sure if there is a magic word to hide the all related annotations on property pages.
You mean on special page "Browse"? You can have a look at
$smwgBrowseFeatures for ways to adapt the output on this page.