I think the primary use for FBE is to warm up new accounts. You can do this by viewing accounts on instagram with long scrolling settings for about 48 hours give or take. Make your settings as random as possible. After 48 hours lower the scrolling time and number of sites per day but keep high variance in your settings - also consider adding links outside of Instagram but relating to Instagram. I personally keep it running the entire day with very random activity times on all my accounts and since doing so have experienced less action blocks and logouts.
@Ariel_Blanco has an article with some links included: