Reply to S4 Mapping

I am wondering if anyone knows where to find an editable TSI file of the default S4 mapping that you load directly from the menus.
I really like the default mapping, but I wanted to switch the effect 1 from "SHIFT + Effect 1 Button" combo, to "SHIFT + Effect 1 Knob". It feels more intuitive to me to search through the effects with a knob rather than pressing a button repeatedly. Also, if anyone knows how to get this method to display the drop down, that would be a big bonus. I tried loading the backup S4 mapping, but it's slightly different from the one that is "hardwired" into it, and missing some of the functionality the original has. Have to say... I was expecting a much easier mapping experience from using TSP with other controllers.