1:

bind TASTE "vstr nickchanger"

1:
2:
3:
4:
5:

set nickchanger "vstr nickchanger2"
set nickchanger2 "name ^1NAME 1^7; set nickchanger vstr nickchanger3"
set nickchanger3 "name ^1NAME 2^7; set nickchanger vstr nickchanger4"
set nickchanger4 "name ^1NAME 3^7; set nickchanger vstr nickchanger5"
set nickchanger5 "name ^1NAME 4^7; set nickchanger vstr nickchanger2"

1:

bind TASTE "DEIN NAME"