It's for pizza dough:)
I'm guessing you mean SAF, not SAD, and you certainly may. Among the benefits of using instant yeast are the fact that you only need half as much as the amount of active dry called for, and you add it straight into the dry ingredients, so that you skip the proofing step altogether. Instant yeasts are strains that have been cultivated to reproduce very rapidly.
Yes you can. I use SAF yeasts exclusively, with excellent results. ;)