BumpingTheir a appb that does it for you first you must download all in one gestures from app store must be rooted... Also you will need to Disable nav buttons in G2 SETTINGS its under miscellaneous
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Thanks for sharing but unfortunately it dont work brpther, settings lost. Restoring backup. I asked @rastigo who said that he already asked many developers but none helped to offer assistance for making the mod. Guess after g2 receive lollipop we might have the mod. But afaik lollipop is far way. So if any dev see this, please offer assistance to @rastigo. He said if he is pointed how to do it, he will make for us. I hope someone answers this request.