Back button id
Description
Specify the Id of the button in the Panel Navigator Header or Footer that should be used for the 'Back' button.
As with the other button Id properties, the choices presented in the 'Back button id' dropdown list are the buttons that were defined inside the Panel Navigator's Panel Header or Footer.
The 'Back' button moves to the last Panel to be viewed, which might not be the previous panel. For example, say there are three panels and you click next on panel 1, next on panel 2, and the previous on panel 3. If you were to then click the 'Back' button on Panel 2, you would return to Panel 3 as shown below:
This is in contrast to the "Previous" button which moves to the previous panel in the Panel Navigator's flow. If you were to click on Panel 2's 'Previous card' button in the situation above, then this would bring you back to Panel 1.
