Reply to Mapping - HELP!

Hi I'm pretty new to Traktor, but I have quickly become familiar with simple mapping techniques. I have a Hercules DJ Control Steel that I have mapped to fit my basic needs, but there are a few advanced techniques that I want to apply to my mixer.

First off, I have Traktor Version 1.2.1 and I want to set up additional midi pages, but I can't seem to do so. At the top of my Preferences > Controller-Manger page, I see the "Add..." button but in the drop-down from "Add..." there is no option for "Select Midi Page." I was hoping to be able to map a command to a button on my controller that would allow me to toggle between midi pages.

My reason for wanting to do this is to assign the jog wheels functions for adjusting the values of FX... such as the beatmasher. I either want to set up an additional midi page, OR map a button to toggle an effect on and then control the value of it using the jog wheel... without having the jog wheel change the scratch/tempo values at the same time. Is this even possible?

Also, I was hoping someone might be able to explain to me the purpose of modifier states and modifier conditions... I can't seem to figure out what the heck they do.

Thanks so much in advance!

- Kai