LOG IN NEXT CHAR (help request)

[Bbotone]

I know that you can relog your character
I know that you can log a character numbered in your character list

IS THERE ANY WAY TO LOG IN THE NEXT CHARACTER?

SO I CAN MAKE A SCRIPT THAT WILL LEVEL UP FIRST CHAR, LOG SECOND CHAR, LEVEL UP IT, LOG THIRD CHAR... ETC

thanks in advance!