How do I use it?
As far as I know, Submit is tied to 'On Click' in Event Trigger and 'Select on Click' on UIKeyNavigation. But there is no trigger for 'Cancel'.
Example: If I'm on save menu then I want to quit, I press the 'Cancel' button, then a confirmation pop up appears "Do you want to continue without saving?" and 2 button Yes/No. How do I achieve this?
*If this was 'Submit' button, I can just use the 'confirmation pop up' panel as target for 'Select on Click' on UIKeyNavigation, add Event Trigger on that panel to show itself, then be done with it.