1. From Setup, enter Permission Sets in the Quick Findbox, then select Permission Sets.
2. Select a permission set, or create one.
3. On the permission set overview page, click AssignedApps.
4. Click Edit.
5. To assign apps, select them from the Available Apps listand click Add. To remove apps from the permission set, selectthem from the Enabled Apps list and click Remove.
6. Click Save.