The input to perform a character specific tag grab is "FF(H+P+K"
F = Forward.
Easy teams are:
Ryu + Kasumi
Ryu + Hayate
Ryu + Ein
Ryu + Momoji
Ryu + Rachel
Rig + Jan Lee
Akira + Kokoro
Brad Wong + Gen Fu
Brad + Eliot
Eliot + Gen Fu
Ein + Hitomi
Tina + Bass
Tina + Mila
Bass + Rig