Add ability to carry over prior values when entering On Demand values

Request directly from client: When you click on the On Demand values change and the pop up asks for the collection period and date, it should also ask if you want to carry the prior values forward and not zero all of them out. Many times all the values stay the same and only one of them may change. And now with the new format of the screen you have to scroll up and down the screens to see if there was anything entered in a values fields or click to the next page then scroll back to the on demand date and reenter values. Before when the years were stacked on each other it was easy to see what fields had values and the amount that needed to be reentered.