Patch: Selectable Script

Am I misunderstanding the selectable script patch, or will it auto-change the monsters' behavior to use the control list attacks & magic?

The 'selectable script' patch will allow the manual setting of two modes for monsters: Colosseum mode and normal mode. In the normal game, the mode setting is automatic. With this patch, a bit in the monster data is used to manually determinate the mode. 

In the normal mode, the monster AI script will be used to determinate the monster attacks. Unless under the effect of muddle or a special status or pseudo-status, the control list won't be used.

In the Colosseum mode, the control list will be used to determinate the monster attacks and its script will be ignored. It is the normal procedure for the Colosseum.