Greetings All

I'm trying to see if their is a better way to increase and decrease values using the keyboard.
At the moment the only way I've figured out to increase and decrease values using the keyboard is to
1) Create "function" for keyboard increasing value
2) Create "function" for keyboard decreasing value
3) Combine "functions" using bondo with expr to calculate value.

Is their a better way to do this it seems convoluted.
See attached PD

PS: I'm using PD-extended .43.4 on ubuntu 10.04 Linux 64bit