1. I am sorry, but fact is, that this button was never included in frontend reservation form (Or I don't know about it). And you are asking about frontend as you wrote in 2 posts. (But your attachement is from backend)
2. Another fact is, that creating new orders via backend was never included. We are preparing it for new version and it will be completely new feature.
3. Even if you claim that I am ignoring something, I already added this problem to our project management. Problem is, that our TODO list for Booking is so long, that it can take longer time for us to implement it.