Problem Re-mapping Buttons

I just bought the S6 Active and I love it, but coming from a Nexus 5 and as a lefty, i prefer the swapped back and recent button layout. I installed the app All in One Gestures but it force closes when enabling the Accessibilty feature. I'm not sure if this is because it only works on the S6 and S6 Edge or if it's because I ran Package Disabler Pro and disabled something that's needs to be active. Any one else have any luck remapping the buttons or suggestions for me to get All in One Gestures working?

Thanks.

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