Make jQuery Datepicker keep navigating on persistent keypress

Question

I have the jQuery Datepicker on my app. I have searched the docs over and over for an option to enable continued keyboard navigation on persistent keypress.

By default, Ctrl+Arrow will move the date one step in any of the 4 directions. (I have actually extended this functionality to happen also on Arrow keys, as it seems more intuitive to me).

What I now need:

To have the current date selection keep moving during one continuous keypress, rather than require intermittent keypresses. The utility of this behaviour becomes more obvious when you need to navigate back 3 or more decades. Continuous navigation is actually the behaviour of the Windows calendar (near the system tray), as well as one Dynarch Calendar that I have been using for ages.

Since there seems to be no native option, any workaround, or plugin would be acceptable.

Thanks in advance!