Seems like you might have posted in the wrong section, but here it goes anyway.
I have the Gizzmo IBC-R and the instructions are a bit crap. Just remember this.
Top button: If you hold it it'll bring up the all the main configurable functions of the unit, such as spike stop, reading units, etc.
Bottom button: If you hold it it'll bring up the actual setting of the load and gains of boost that you want to set for each memory setting.
Just remember for all the functions, once you have come up with the desired number, press the top and the bottom button at the same time. This will set the numbers into memory.
Also once you have set your load and gains, you need to set it on closed loop and give it a few 3rd pulls first so the computer will learn the stable readings. Once it's done so, you have to turn off the car to commit it to memory.