I use the NUM Keypad (NUM1-9, /, *, -)

1,2,3: TT, VT, FT
4,5,6: HT, Ph, empty
7,8,9: ID, Dis, CT
/,*,-: RoT, PT, Sweep

Ctrl+numlock: buffs and jumps
alt+numlock: only has doomspike, life surge, and power surge atm.