I use keyclone currently and I have used ISBoxer as well. The feature I am looking for goes like this:

Press 4 and the first time you press is it sends 4, next time 5 and third time 6. Then it loops back to 4.


Example

Input 4, 4, 4, 4, 4, 4

Output 4, 5, 6, 4, 5, 6


I would like to do this on a per toon basis.