Hello,
In JAWS the PageDown key is bound to JawsPageDown script. By default this runs the DoPageDown function. Note that the there is a setting in JAWS setting center defined as:
Use this setting to determine how many lines the Virtual PC Cursor moves when you press PAGE UP or PAGE DOWN. You may want to increase this amount if working with pages that have a large number of links. The default value is 24. Press F6 to move directly to the
If there is a specific ARIA role that should have PageDown passed to the Browser instead of being handled as go down 24 Virtual Cursor Lines, this could probably be implemented.
I missed the beginning of this discussion, but would be willing to code up an example change to the JAWS scripts if somebody provides details to me at my personal address of jccaccess@gmail.com<mailto:jccaccess@gmail.com>.
Jonathan