Dynamic controls

I'm just looking into JSF, and so don't have the pattern down yet. So either this is trivial or can't be done:
I'm looking to move some JSPs to JSF. The JSPs creating varying number of controls (input fields, drop-down lists) based on the contents of a bean. I use JSTL to loop through the bean and create the controls (and their generated names). The associated servlet knows the patterns of the names and so can find the appropriate parameters. Works, but not pretty.
I can't see how to do this readily in JSF. I can certainly do it (well, almost) in Java by creating the component tree there. But there are a couple problems: Not all the tags I need have UI Components and - more importantly - I'd like to have this stuff in JSP files. I have folks who know HTML and taglibs and shouldn't have to be in Java to modify those things.
Doing it from the taglib side should be easy except I can't use expressions where I need to. What would work for me - but I guess isn't legal - would be the ability to do things like:
<h:inputText value="#{reportBean.outputFormat[${loopcounter}]}"/>
Am I missing something obvious? Or simply trying to fit a square peg into a round hole?
Thanks.

If you know the bean value(s) and want to base button display on that value(s), could you use something like
<logic:equal parameter="${bean.var}" value="something">
<h:commandButton id="ret" action="#{bean.fmJSP}" value="Return"/>
</logic:equal>
If bean.var did not == something then the command button would not show.

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