How to use Page header drop down selected value on page fields

I have a requirement to add drop down on page header. I implemented this by having a custom layout with snippet having input reference selector widget. With this implementation I am not able to notify the page about the drop down selected value. I want to know if there is a way to use the selected value of page header drop down on the page fields/microflows?
1 answers

If you place a Dataview elsewhere on the page that is pointed to the same entity as the drop down in your header, you should see any changes you make in the drop down in the other dataview.