i don't think there is one - you will just have to put this in -
e.other.text = "10" ? {scene.my.blahblah = scene.my.blahblah + 10} : {};
e.other.text = "20" ? {scene.my.blahblah = scene.my.blahblah + 20} : {}
etc. etc.
you get the idea
other than that, 10/10
Can you please make more input boxes because I am going to try and make it do a job like making breakfast and other task like that I can't figure out how to make more of them because I tried cloning them, but I only managed to mess it up Thanks!