well here are some opcodes
#define OPCODE_MemorizeSpell 0x6CFB (now 12 bytes)
#define OPCODE_ChangeStandState 0x5CEA
#define OPCODE_ForgetSpells 0x6CFB
The opcodes for MemorizeSpell and Forget seem to be the same now. This plugin is very old as it has the old school way of /zone, /gate, etc...