math in geek window

[OppaiDefender]

I'd like to suggest the ability to perform basic maths on the macros that can be selected for display in the geek window.

The reason i'd find this useful is that I use the geek window as an overlay for streaming/recording my performance in rhythm games. In my particular case, I want to show meaningful statistics such as the average keypresses per second per FINGER.

Essentially, I want to be able to have an additional line in the following example that would list the keys/sec divided by 4 to correspond with the 4 keys in the game.
http://puu.sh/jS2qb/0fbf57da43.jpg

If this was implemented, I'd imagine that the maths could be done in a normal expression such as this:

Code:

(%InstantKeyRate%)/4