Workshop's Exchange integration allows you to select the dynamic distribution lists you want to use. Once selected, they will be automatically expanded and kept up to date within Workshop!
Navigate to Manage > Apps:
Scroll the list and select "Microsoft Exchange":
Select "Add app":
Note: This integration performs an OAuth connection against any valid Exchange Online mailbox. Workshop does not require any admin permissions or global permissions on Exchange and can use any valid mailbox account to perform Dynamic Group expansion. Workshop uses the Exchange Web Services API to connect to an account. We recommend that you utilize a dedicated service account to connect to Workshop.
Select "Authorize Exchange User":
Type the full email address of the dynamic distribution list you wish to maintain within Workshop:
That's all there is to it! You can review the dynamic lists being synced from the same screen: