I've tried to figure out multiple ways to do this. It seems like it should be simple enough but I haven't been able to figure out how to select multiple cells to fill them with the same number - without changing a preexisting background color that I have across some cells.
If I do the usual select the cell, drag the corner routine, I end up copying the background color in unintentional ways.
I literally just need the same number (.25) assigned to almost every cell. 
