Default Unlimited tethering on s4 using slimbean

I have 3 lines, all with unlimited Internet but tmobil only allows 2.5gb of tethering. Currently using slimbean stable on my s4, how do I get unlimited tethering? I've tried Wify Tether app but it doesn't work.
I went into the apn settings and I see several options.

Any advice would be appreciative. Spent an hour trying to figure this out :/