Is it possible for my app to open the Messages app with my iMessage extension activated, on iOS 10?

Question

Specifically, from my app I'd like to open the Messages app and activate my iMessage extension with:

1. an existing MSConversation (via the remote participant UUID?)
2. a new MSConversation (via a CNContact?)
3. a new MSConversation with no remote participant specified

There must be a way with UIApplication:openURL: ?

Or maybe with the MFMessageComposeViewController?

Answer 1

An Apple staffer on the Apple Dev forums replied: No, this is not currently possible.

I filed a feature request as RADAR 27079838.