If HTML Purifier's tag set is unsatisfactory for your needs, you can overload it with your own list of tags to allow. If you change this, you probably also want to change %HTML.AllowedAttributes; see also %HTML.Allowed which lets you set allowed elements and attributes at the same time.
If you attempt to allow an element that HTML Purifier does not know about, HTML Purifier will raise an error. You will need to manually tell HTML Purifier about this element by using the advanced customization features.
Warning: If another directive conflicts with the elements here, that directive will win and override.
--# vim: et sw=4 sts=4