Use this function once the instance has been created to alter the input parameters required by the operation:
fgl_ws_setparameters("handle", [parameters])
These parameters must be in the correct order as defined in the FGL Meta file. It is advised to keep to the same type too, although on conversion back to XML, type conversion will take every care to ensure correct types. If conversion fails, then NULL will be returned in its place; NULL will also be returned in the case of too few return parameters:
CALL fgl_ws_setparameters("myAdd", 4, 6, 8)