MSL# APN Change Sprint HotSpot

[Ca_lvn]

Hello So I just got my Note 7 coming from a note 4 with the hotspot Activated by changing the APN name.
So I got my MSL number from sprint to access cdml and I have access but its all whited out and won't allow me to make changes!
I'm trying to change APN default mms to add dun @ the end this will Activate hot spot.
Any body here got into this yeat?

 

[Ca_lvn]

Looks like MM 6.01 killed the possibility of apn change to Activate hot spot , The Carrier's got smart ,So right now I'm using easy tether pro for Internet connection to my computer and that works fine.