It has been since poco published a second video from Xiaomi that still shows a new function of the new MIUI mayor release, the MIUI 8.
As you can see in the video you will be able to create a new note (with the default Xiaomi app) simply with a swipe with 2 fingers down. Likewise, with a swipe with 2 fingers up, you can delete a note, accompanied by an animation that remembers the "Destroy Documents".
Manca poco now at the imminent presentation of the MIUI 8 which, let's remember, will be the 10 May 2016 together to other new devices.