Board Thread:Support Requests - Getting Technical/@comment-5065259-20130111225402/@comment-3387692-20130111230602

You can use parser functions to check for a number of different scenarios (including whether or not a value is given for a parameter, whether its a specific value, or even if a certain page exists). Since MediaWiki's explanations can be a little dense, I can give an example if you'd like if you tell me what message you want shown/not shown under which conditions.