charge controller settings for lithium 48v

[patdufo1]

I have an epever 60 amp charge controller allready set up for lithium but I need the charge limits of 42v min and 50v max,everytime I try to change to this it changes some other perameter and wont accept it,my batteries have a 46,7 nominal and shouldnt be charged past 50v,I have sent n email to eppever but no response,when to much sun I have to turn on everything in the house to keep it below(pain)I do have it set to 52v max I believe but sometimes gets to 53,6 which is dangerous for these bats,thanks

[patdufo1]

These are the Current settings