Board Thread:Support Requests - Getting Technical/@comment-5693502-20150907204716/@comment-1757994-20150907231008

For &lt;choose>, perhaps you mean.

Except for &lt;includeonly> (btw, there's also &lt;onlyinclude>), &lt;noinclude>, and &lt;nowiki>, the others are standard HTML.

https://developer.mozilla.org/en-US/docs/Web/HTML

http://www.w3schools.com/tags/default.asp