Mehdi HAMMADI you can't use it currently on the monthly channel, it's not just a matter of build number. See my comment above - you'd need to switch from the monthly channel to the Insiders channel. On the insider channel, I believe the more current builds that have it are based off of 9226. That said, it's still rolling out. What I mean by that is that even if a customer has the correct build, the feature may be turned off - we turn it on for a wider and wider set of customers, monitoring for quality issues as we go, in an effort to reduce bugs/issues. So there may be some customers who are using Insiders builds that don't see it yet - in that case, please be patient a little longer as the feature will light up for 100% of Insiders soon, and then will begin rolling out to the monthly channel after that.