Filter Page Elements By Selectable Date Range

Filter Page Elements By Selectable Date Range

I have created a basic Page that will serve as a client dashboard with elements that will provide simple counts & sums of data in reports. There are no reports or forms added to the page, just elements. It currently functions as needed, but shows the sums and counts of all selected records/fields to date. 

I need to filter all of the elements/values on the page via a date range. Example: Customer somehow selects start date and end date, and all of the page elements show counts and sums only for that date range. 

I am somewhat new to Creator/Deluge and have gotten pretty far on my own, but I can't seem to find a way to do this. Seems like a pretty standard function that would be available by default, so maybe I'm missing something? 

Any help would be appreciated, thanks!