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Preloading cascading listbox



My app has a “Settings” Data Page which first lets the user select one or more states from a multiselect list box, and then one or more cities from a multiselect cascading list box showing only cities in the selected state/s. The selected state/s and cities are exported as parameters on exit and used by other Data Pages. When Settings are opened, previously selected states are pre-loaded. The process works perfectly, except that cities cannot be set to preload - presumably because its list box is cascading (and that of course makes sense). My problem is that the app makes continual use of the Settings Data Page in an iterative way to add or delete a single city while maintaining many previously-set cities – so not having the text box pre-loaded is a problem. Any JavaScript or other solution that I can be pointed to would be greatly appreciated. Thank you.

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