Enable BOTH edge scrolling and two-finger scrolling for touchpad

You can use synclient VertEdgeScroll=1 to enable vertical edge scrolling,

or synclient VertTwoFingerScroll=1 for two finger scrolling.

Just copy/paste a command into a terminal window, and hit Enter.

So to have both just paste:

synclient VertEdgeScroll=1
synclient VertTwoFingerScroll=1

Create a file with the commands in mikewhatever answer:

echo synclient VertEdgeScroll=1 >> ~/.config/scroll-touchpad
echo synclient VertTwoFingerScroll=1 >> ~/.config/scroll-touchpad

We make it executable, and protect it from being deleted:

chmod +x ~/.config/scroll-touchpad
chmod -w ~/.config/scroll-touchpad

The we add to our gconf settings this file:

gsettings set org.gnome.settings-daemon.peripherals.input-devices hotplug-command '"'$HOME'/.config/scroll-touchpad"'

Now you can restart Gnome, log out and in, etc. and your preferences will persist.

Based on Nahuel answer

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