Depending on what you want to selectively release, you can either use Groups/Groupings or if you want to release by date, follow these steps:

1. Go to the Activity or Resource that you want to set the release time for.
2. Click on the Tools block and select Edit Settings.
3. Scroll down until to the Restrict access section and complete the Allow access until and/or from fields to release the activity or resource accordingly.

Other resources:

• Quick Guide
• Register for a Training workshop