This is functionality that might get included in next oe version (4), but it is a sponsored functionality and I don't know if they have finalized the spec for it. If your interested in having a say / sponsoring this kind of functionality contact jy [AT] ez .
As for tag limitation in TinyMCE, this is fine, but only counting on javascript to restrict something is like telling kids to not play with the toys in a toy store.. :)
As to the tinyMCE or other editors - yes, any validation within the browser provides functionality rather than validation itself (or at lease not the one you can trust). That's why what I am after is a validation configuration on the eZ Publish server side, that would only validate/accept particular hypertext or xml tags/elements. If I had achieved that, it would have just been a little more convenient for the user to see the minimum amount of icons/functions, and that's where tinyMCE's flexibility comes handy, but it is naturally a secondary goal.
