I want to run CMAQ with 2014 NEI for 15 days. However, for some emission inputs, there are some dates missing. So my start date is 20140101 and end date is 20140115. How to fill up the missing dates? For instance, for general weekdays, I want to use the averaged of all the dates I have. How to let CMAQ know I want to calculate the averaged day emission? Is there a way to set it up in the running script?