Yeah I understand that, but I would have thought they would also have a simple grainfather 2 step mash profile that includes the grainfather water calculations. e.g. 66 degree Mash in, 10min 75 degree mash out, 75 degree sparge, all at the correct water levels.There's not one single mash profile that works for everything.
Mash profiles depend on your recipe and what you want out of it. Different beer styles are going to have different mash steps.
In BeerSmith it's up to you to decide those mash steps and profiles. (but you can save them and re-use them for similar styled beers if you want).
EDIT:
BeerSmith also has a range of pre-existing default mash profiles that you could choose from.
I'm assuming the beer smith mash water/sparge water calculations are derived partly by the mash profile selected or no?