Home without hitting the Home button

[Android Central Question]

On my Note 4, I can hit recent apps and tap on the "desktop" it responds as if I had hit the home button. On my Tab S2 I wish to have this same functionality but cannot figure out how to do it. The Note 4 is running Marshmallow and the Tab S2 runs Nougat. Both run Nova Launcher Prime. I'm not sure if this is an Android setting, a Nova setting, or perhaps something Samsung does or doesn't do. Any help would be greatly appreciated.