How do I change the Apps that appear on my split screen?

[AC Question]

Just made the switch to Samsung Galaxy 6S from iPhone. I love the idea of the split screen feature, when I hold down the left button, it brings up the split screen option. My question is how do you change what apps appear on the split screen?

For example I would like to add the Waze app so I can look up a place to eat on Google, then put it in to Waze with both apps open.

 

[BWB8771]

You'll need to either 1) wait until Waze & Samsung work something out, or 2) wait until Xposed Framework catches up to Android 5.x, and then install the Multi Window Manager. Xposed is out in beta (alpha?) right now, but it is admittedly buggy, so it's best to wait.