No way of completely disabling the sensitive zone over buttons

[Vince-Rev]

This bug is related to this question: https://askubuntu.com/questions/905348/really-disable-touchpad-over-the-button-region

Currently, on my laptop, I found no way of completely disabling the sensitive region over buttons (both movement and touch). Which means that if I use two hands: one to move, and one to click, as soon as my "click hand" touch (without clicking) the sensitive region over the buttons of my touchpad while moving, the pointer stops and the touchpad switch to the two-finger mode. It would be very nice to have an option, to COMPLETELY disable the sensitive region over buttons as if they were physically distinct, like on olders touchpads.

lsb_release -rd
Description: Ubuntu 16.04.2 LTS
Release: 16.04

Package version:
xserver-xorg-input-synaptics-hwe-16.04
1.8.3-1ubuntu1~16.04.1