Please consider:

Hi I'd like to make a request I like the way the barracks work now how they all work together this idea is similar but with the builders I think it would be awesome if we could choose the amount of builders you use for a upgrade so a 12 day upgrade would only take 4 days using 3 builders please let me know what you think of this idea and if there is any possibility of this happening thank you sincerely:dakota horth