On the Marketplace home page:
1. Search for and select the Marketplace app you want to add to the Collection.
2. On the app tile, click the Add button.
3. In the Collect window, select the Collection to which the app will be added OR create a new collection to add the application to.
4. Decide whether or not to include the Data File
4. Click Add.
5. After an app is added to a Collection, you can specify application settings, if desired.