@Handeman The Exercise app has 20 or so Exercise Shortcuts available. but you are limited to six on the device. Walk is available, but it isn't on the default list. This YouTube video shows you how to customize your shortcut list. The video was made with a Charge 3, but the instructions are the same for the Charge 5.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.