Important!!!
do this at your risk! But work fine in mine MX6.
So far no crash,bootloop, & burn!

Requirtment:
-Rooted mx6
-Xposed farmwork latest For Android 7
-swipe back module (download it from xposed)


Step:
(DYOR)(Take Backup)(clean your chache)
after you rooted mx6, install xposed from xda forum make sure its version for your android version!. Grant the root, Install main module, boot take times. Go to download tabs inside xposed, search for "SwipeBack" module, download it, install it, when down, close and re-open exposed, go to module tabs, thicks box to active Module of swipeback,. Reboot !!! And viola verse you dont need to push that ugly button to back just swipe your edge!!!

Cc: developer xposed modules.