yeah our kernel doesnt support that.
This app is for the Semaphore kernel which heavily modified and allows for adjusting alot of settings
Nobody had modified a kernel for this phone with such capabilties.
The first paragraph of the Xda thread
"Semaphore Manager helps you to easily full control
all Semaphore kernel features. It's only compatible
with Semaphore JB kernel and works on Samsung
Galaxy S-I9000, SGH-I897, SGH-T959 on Jelly
Bean ROMs. It requires a rooted device, with
Semaphore kernel installed."