Trigger Query - Number Lock vs Standard Numbers

Hi,

I have slides with numeric input fields. I am using the trigger for these as "jump to next slide when the user presses 7" What I have found is some users are typing the number in with the numbers above the alphabet keys and others are using the number lock pad. 

My question - is there anyway to format the trigger so that the user can use either 7 key without being limited to one or the other?

Any suggestions would be appreciated,

Thanks!