redstore | lightweight RDF triplestore written in C | Data Manipulation library

I have a SwiftUI app where I show a map (using Mapkit made with UIViewRepresentable) with different annotations being displayed. On each annotation, I have implemented a callout button and I would like to completely change the main View when the button is pressed.

My idea was to use a State/Binding parameter of the main view and the mapView. The idea works but I have some difficulties to implement the State/Binding with the way I use the Map View. The difficulty is that I am using the map as a parameter for a second view containing the menu to interact with the map. I tried to change how I use the map view but I did not find any solution...

My idea was to create the map : @State var map = MapView(displaySP: $displayStorePage) before body but I can not do it (err : Cannot use instance member '$displayStorePage' within property initializer; property initializers run before 'self' is available)

Any help is very welcome :)

edit: Additional code display, I tried to do the lightest version.

So in the code, the goal is to toggle the displayStorePage in Mainview from the Mapview function activated for annotation click func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl)

Main View: