The only thing I see in BS 3 is on the “edit recipe” page, down near the bottom, under the “yeast starter calculator” heading. There, you will see “yeast recommendations” and a box giving the suggested amount in grams. Below that will be the recommended number of 11 gram or 5 gram packages to equal that many grams.
Maybe not what you were looking for, but what I found after a relatively brief search.