Hello, It could be nice to be able to do that, in some cases i would like to keep my user in my app and send him back to the very start of my whole workflow (main).

Usually I put my main router logic in a Router workflow. In the main flow I have start-conversation triggers all connected to the Router workflow so I can go to the Router when needed.

yeah so it was a mistake of me to put any logic on the main workflow

It's not a mistake; it's a different approach, but in this case it has limitations.