http://www.mixmods.com.br/2016/12/no-dealer-help-text-remover-text-box-do.html

No Dealer Help Text (Junior_Djjr).sc

/*
CLEO script for GTA:SA wrote in GTA3script language (0.2.0)

Description: Removes dealer help box by hacking his external script changing 88FE: opcode ("NOT IS_HELP_MESSAGE_BEING_DISPLAYED")
             into 0485: ("IS_PC_VERSION") (also called as "return_true" by modders)
*/

{
NOP

LVAR_INT mAdress
LVAR_INT tempVar

mainloop:
WAIT 0
GET_SCRIPT_STRUCT_NAMED DEALER mAdress
IF mAdress > NULL

    mAdress += 16      //base ip
    READ_MEMORY mAdress 4 FALSE mAdress

    mAdress += 2980    //offset

    READ_MEMORY mAdress 1 FALSE tempVar

    IF tempVar = 0xFE  //88FE:
        WRITE_MEMORY mAdress 2 0x8504 FALSE
    ENDIF
ENDIF
GOTO mainloop
}