[xwiki-devs] document bundles "execution"?

Hello list, I just realized that there seems to be very little executable code interpreted in the document bundle documents. I was simply trying to make a document that is declared as document- bundle to be an include of another document and it did not work with any of the include methods I found at http://platform.xwiki.org/xwiki/bin/view/DevGuide/IncludeInVelocity should it work? But maybe no script is running in the programme that reads the document-bundle in which case this is easily understandable. Another reason for which it would be lovely to have scripting in document-bundles is in bundles that repeat a lot. In Curriki this is often the case because bundles come from different applications and may, indeed, in the very long run, become different (e.g. because we reach yet another language or...): here I would love that for English, at least, it is explicitly written key.name = $msg.get('other.key.name') is that thinkable? thanks in advance paul