How to activate other functions or apps with Bixby Key?

Here you are able to re-assign the bixby key.
You are able to choose to Single Press for Bixby, and Double press for an App or Command OR You can Single Press for an App or Command and Double Press for Bixby.

To choose the assigned app/command.
Select the option you would like to choose, Click on the toggle on the right hand side to turn on.
Choose if you would like to assign an App or Command.
- For an app you will be redirected to a page with all the installed apps on your device where you can choose the application you would like to assign