Copy some fields from one table to another by onClick event

Good Day,

I have the app with SQLite database.

There are two tables in database the first called main the second favorites.I have a recyclerView which displays all items from main table.

Also I have a button in each recyclerView item, and I would like to duplicate certain item from main table to favorites by onClick.

I have an idea to make some flag in main table and copy all items with flag, but I can`t implement that because of my main table can updates dynamically, but favorites can`t do that.

Any ideas how to implement?

Anyway, thank you for answers and comments!