I've got zero experience coding mind you. But I can tell you it's fairly easy to use Playmaker and Easy Touch. While I also agree that PM actions would be super useful, you can do this in the mean time.
EasyTouch has a both a JavaScript and a C# template for the various buttons, Down, Up and Press. All you need to do is add a bool variable to that script that is set to True when the button is pressed and the false when the button is not.
You then use Playmaker to watch for said variable and turn it into a PM variable and send your appropriate actions based on the value of the said bool.
Hope this helps!