Application Express :: How To Do Selectable Filtering Of Output From Table-function

I have a report which comes from a table-function.  This produces hundreds of lines of output which the user would like to be able to select and then export just the subset of lines.Looking at the Forum's (this article and this one) this seems possible if you are working with a table where you can re-query the original dataset with just a specific rowset required however as the table-function is generating output on the fly it is hard to rerun the query to reselect the same output for redisplay.  Also most of the reports are working with interactive reports - whilst this is just static output. Is there a way to redisplay the information which has already been shown in an filtered way with check boxes?Is there then a way to have hidden fields which are not shown when the check boxes are selected but which can be shown in the "filtered" view? I am using Apex 4.0 at the moment on an Oracle 10g instance.