Is gpointing-device-settings in Ubuntu 16.04?
I cannot find it in apt-get. It is in 14.04.
It is not in the repos for 16.04 but it is available on launchpad
Install from the .deb with
sudo dpkg -i gpointing-device-settings_1.5.1-6ubuntu2_amd64.deb
Don't install it, it works just the very first time and don't work after reboot gpointing-device-settings lost on reboot
Better use workaround like this: https://unix.stackexchange.com/questions/101867/make-mouse-movements-scroll-when-the-middle-button-is-held-down?noredirect=1&lq=1
Use xinput commands, as explain in the response of the link above.