App layers are useful when you are distributing certain applications to a discrete group of users. You can also use them to update or replace specific applications, instead of having to recapture new base layers.
Follow the instructions described in VMware Mirage Administrator's Guide to create app layers.
Considerations and Recommendations when Creating App Layers
Keep the following information in mind when you create app layers.
When you create the reference CVD, select the default Mirage policy.