• By default Joomla! prevents some HTML from being inserted into articles (except for the Super Administrator). It is best to install sdMacros to solve this, but if you would like others to be able to insert any HTML (for example as part of a gCalMarkup template), you may wish change the default filtering (see Joomla! HTML removal article). The following procedure sets the blacklist filter so editors and above can add any HTML to articles. Again, please note that sdMacros can also be used to encapsulate HTML into separate articles to be included by any author into articles. If only Super Administrators create these articles (for example containing any gCalMarkup templates), this procedure is not needed.