Change multiclass kit name with ee keeper or near infinity

Hi,

I found that if i create a fighter/mage using invoker or any specialized mage kit, the game can use its name to fighter/invoker or fighter/conjurer both in inventory screen and in record screen.
If i try to use another multiclass like fighter/swashbuckler eg. It only works record screen, but inventory screen shows fighter/thief. How can i modify it to show the same in the inventory screen? Opcode 290 not working...