Help:$smwgCategoriesAsInstances

is a configuration parameter that sets whether a category statement like e.g.  should be treated as an element of the category "Foo". The configuration parameter was introduced in and deprecated with CiteRef::gh:smw:2806.

Default setting
This means that category statements being treated as elements of the category, e.g.  should be treated as an element of the category "Foo".

Changing the default setting
To modify the setting to this configuration parameter, add one of the following lines to your "LocalSettings.php" file after the  call:

This means that category statements are not being treated as elements of the category thus making it impossible to make category pages elements of other categories.
 * Disable category statements being treated as elements of the category