IPS\Conversation implement Lockable

[FNDN Admin]

I was wondering if you can make IPS\core\Messenger\Conversation implement IPS\Content\Lockable so that a message can be locked. I think this is beneficial if an admin sends a message and does not want a reply and potentially a user locking a message to another user. Or having a third member as a viewer of a Conversation but it is locked to them but not all members of that Conversation.

Thanks