Here is how to run R12 and R24 ...
Have Prompts for Month (1 to 12 ... Parameter of p_TMonth), and Year (Parameter of p_TCalYr).
1 - Make a Data Item "SELMMYY"... _make_timestamp (?p_TCalYr?,?p_TMonth?,1)
2 - Make a Data Item "Go_For_MM" ... _make_tim...
Have Prompts for Month (1 to 12 ... Parameter of p_TMonth), and Year (Parameter of p_TCalYr).
1 - Make a Data Item "SELMMYY"... _make_timestamp (?p_TCalYr?,?p_TMonth?,1)
2 - Make a Data Item "Go_For_MM" ... _make_tim...