Help [Moto Z Question] Can I use fingerprint reader and proximity sensors as defacto nav buttons?

[Harut]

Hi, I have a Moto Z droid and whiles it's a great phone I hate the fact that the bottom bezel is huge and that it doesn't use that space for the navigational buttons. Is there any software available to disable the on screen buttons and use the proximity sensors as de facto navigational buttons? So when I move my finger over the left sensor it actives the back button?

Thanks!