You can code S-Tags in source mode so you can customize your site beyond the Content Editor's functionality. S-Tags support two forms of syntax - bracket and XML.
Bracket syntax
[[Sx:parameter:parameter]]
Where x is the S-Tag number. Multiple parameters are separated by colons.
This syntax uses the S42 Tag to display the top 25 TeamRaiser fundraisers, where 1285 is the TeamRaiser ID and top-participants specifies the number of participants to show): [[S42:1285:top-participants:25]]
If there are no parameters, don't add a colon. For example, use [[S4]].
XML syntax
<convio:session name="x" param="parameter1:parameter2"/>
Where x is the S-Tag number. Multiple parameters are separated by colons.
Tip: Some S-Tags use an asterisk (*), a comma (,) a hash (|), or an underscore(_) , rather than a colon (:) to separate parameters. This variation is noted in the S-Tag topic.