Bridget,

This is actually something you can do through the special access tool within Assignments. We have a guide here that outlines how to do that, but the key part is an additional step at the very end. When you get to the list of students, you can click where it says “View By” and change that from User to Sections. That will then give you the ability to select your desired section, select all students, and then add whatever specific dates/times you want for that section. If you run into any issues with this, or have any further questions about this, please reach out to our support team for more help. We’re glad to be of assistance if we can.