Repeating Calendar entries

HiI’m attempting to write an agent that analyzes the DueDateTime array field of a repeating Notes Group To Do. Does anyone know how to read only the first instance of this response doc via Formulas language or LotusScript? In other words, how do I write an agent to get a handle on the first instance of the response doc where DueDate = Today? I tried the formula @IsResponseDoc, but this does not even see the response doc at all. Ultimately, I’d like to get the agent to read each instance doc seperately.

Any advise would be greatly appreciated.

Thank you