Yes! Even if you’re not ready to post your new product listing to your store, you can still attach an Easel Assessment or Easel Activity to it in the meantime.
Remember to leave the ‘Make Product Active’ box unchecked if you’re still working on your listing and do not want to make it available to Buyers in the marketplace. When you’re ready to post your new product along with the attached Easel Activity and Assessment(s), just open the product listing in the edit window, select the ‘Make Product Active’ box and click ‘Submit’.