You can access that button by adding .buttons()[0]
. The
UIATarget.localTarget().frontMostApp().mainWindow().buttons();
expression returns a javascript array (which has a 0 based indexing).
Here you can find a rather usable documentation: https://developer.apple.com/library/ios/documentation/DeveloperTools/Reference/UIAutomationRef/UIAutomationRef.pdf
Anyway studying this plist is not the most convenient method to explore your object hierarchy. I prefer to check instruments output directy. (Or standard output, if you run instruments from command line.)