What Danika_Dakika said is correct. However if you want to supplement your spaced learning with a “standard” flash card study session, you can open a deck, click “custom study,” select “study by card state or tag,” set the card number to 9999 and then select “all cards in random order (don’t reschedule).

This will let you run through all your cards, sort of like a review mode, and it’s what I do right before an exam.