gravity prediction for mash per sparge

Hi Brad and crew,

I would like to see fields that show the predicted gravity of the initial mash infusion and the values of the follow on sparge addition for batch sparging. 

I use the first infusion number to help me judge when the conversion is done, the others are less important but it tells when the sparge is close enough to drain.

I currently calculate those values in a spreadsheet and it would be nice to have it inside beersmith. 
Stan

Would you be willing to share that spreadsheet?  I'd be interested in seeing how you do your calculations.