ah well the problem you have there is that you have every key linked to the same hotstring.. basically that means when you press 1 on your first toon. it is now trying to activate all of the other combinations at once.

you have to break it down so that each combination is specific to a hotstring.. ie like so:

ToonA:

(key/hotstring)

1/1A
LSHIFT+LALT+1/1B
LSHIFT+LALT+1/1C
LCTRL+LALT+1/1D

ToonB

LSHIFT+LCTRL+1/1A
1/1B
LSHIFT+LALT+1/1C
LCTRL+LALT+1/1D

ToonC

LSHIFT+LCTRL+1/1A
LSHIFT+LALT+1/1B
1/1C
LCTRL+LALT+1/1D

ToonD

LSHIFT+LCTRL+1/1A
LSHIFT+LALT+1/1B
LSHIFT+LALT+1/1C
1/1D


If you now press 1 on toonA, it will activate LSHIFT+LCTRL+1 on all the others etc