seria bacana se fosse possivel, pergar um lacaio T1 subir para T4 , ou por Mods ou por atualização!
You want to do what? Replace a T1 thrall with a T4? Or are you trying to turn a T1 into a T4? Idk if translate is coming out right for me. 
It’s a suggestion that pops up from time to time: make it possible to upgrade lower tier thralls into higher tier.