Chart data selection

Hi, I have created a line chart using chartjs module. The problem now is that I use the whole set of data from the entity which has to may records so I want to add two buttons that I can use as a start selection and the second button as an end selection criteria (from-to) in my microflows. In my case a date attribute from that entity. Whatever I try, reference selector input reference selector, etc. I can't use the date attribute as a selector. How do I add the two date selection buttons to use in my chart data?
1 answers

Create a non persistent entity with 2 date attributes and pass the non persistent object to your microflow?