[Mediawiki-l] Can MW support "conditional" TOCs?

[Matt England]

My MW 1.4.0 server always displays a TOC whenever there are more then a 
certain number (4?) sections in a page.

Is there a means to configure MW such that it _never_ displays a TOC unless 
the markup has a "__TOC__" in it?

My group is running 1.4.0 (yes, I know this is ancient) server on one 
system to be upgraded soon, am building a separate 1.5.6 server.

-Matt