Set values in a sfunction embedded code from GUI...

typedef enum
{
    MCI_DI_ANY_ERROR_FOUND,                     
    MCI_DI_DOC,                     
    MCI_DI_DOV,                       
    MCI_DI_DUV,   
} MCI_DI_TYPE;

this code is inside an sfunction block in simulink model... i need to set these parameters from gui as an array....also i want the array size to be scalable from gui...for eg: the first element can be array size and wen i change it more locations get added..