The way I see it (I tried a dozen or so CMSs) all of them use a single template file (usually index.php) that you can alter by putting in includes into that file showing the CMS where to put it's content.
What I want, is to be able to put includes into existing html pages (either renaming them php or altering the .htaccess file to have html parsed) so it displays specific articles. In other words, in the cms I would for example create an article "about" and then in about.html I want this article included. AND, I want the option to have any article propagated to index.html.
Something like cushycms or snippetmaster would also suffice if they came with the propagate option (which they don't).
There must be a CMS out there that does this? If not, can any existing CMS be altered to work like this?