//ZBrush macro - save to ZBrush 4R8\ZStartup\Macros\Misc\

[IButton,???,"Toggle Transparent mode",
	[IConfig,4.8]
	[If,[IsEnabled,Transform:Activate],//if there's a model in Edit mode so the button will work
		[If,[IGet,Transform:Activate] == 1,//the button will return 1 if it's on
			[IUnPress,Transform:Activate]
		,//else it's off so turn it on	
			[IPress,Transform:Activate]
		]
	]
]//end of macro