Hey mate,
you just use a Switch node. It’s a bit different depending on the variable you want to use.
I used a String variable here:
http://puu.sh/c7T9o/22107e4c26.png
Here you can add the Strings you want to check to the Array in the lower left options window.
You can also do a switch on Int Values, but what i saw it’s only incrementing, so you say him “Start at 0”
and the switch node will give you 0, 1, 2, 3, 4 etc for every new Switch Case.