<Firestore UI RecyclerAdapter pass data to second ...

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Firestore UI RecyclerAdapter pass data to second Activity
I have a Firestore UI Recycler Adapter using Kotlin on android and I would like to select items from it and pass the selected results to a second Recyclerview in a second activity. FirestoreRecyclerOptions has a method setSnapshotArray that may help me if I could pass it in an intent. I also could extend Activity class and make FirestoreRecyclerOptions a global scope var. I could also make use of tag on the viewholder to set a selected flag on my model class. What is the proper way to do this?