I will make it more clear for the ones that still don't understand.
This is Jimmy's full code in the ide.img:
player..player..
....Medium..PLAY
ER1.STAT_PLAYER.
Grap....null....
null....null....
ÿÿÿÿ/Global/Play
er..Act/Player.a
ct../Global/Play
erAI....Act/Play
erAI.act....N_Ji
mmy
Highlight the "ÿÿÿÿ" part in hex editor and on the left you will see "FF FF FF FF". Change that value to any other.
For example if you want to make only 1 clone of Jimmy do this:
"FF FF FF FF" -------------------> "01 00 00 00"
If you want 2:
"FF FF FF FF" -------------------> "02 00 00 00"
That's it.