Hi @enid. There is no specific number of votes that would trigger active development. It is just one factor that is considered. Others include ease of development, fit with other features, demand on other channels, and more.
That said, as @DreadPirateRush has pointed out, Wyze is actively researching this. That’s the highest status in Wishlist and one step before it moves to Roadmap for actual coding. Here’s the description of Researching from the wishlist explanation:
researching - We’re looking into this and trying to select a good method for implementation but we’re not at a point of working on it yet.