Can I create or assign icons for the home, menu and back button on my Samsung S6 Edge as a side screen functionality?

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AC Question

Samsung S6 Edge side screen functionality

From the side screens on the Samsung S6 Edge, can you create or assign icons for the home, menu and back button functions? I would think the "ultimate" phone display design would be to have a large screen that can be used with only one hand. Currently, One-hand use of the phone can be awkward when trying to trying to reach low on phone face for the menu,back and home buttons.