There are two ways to create a Mobile Gallery App from an existing collection from Client Gallery:
- Using photos from an existing collection in Client Gallery
- Creating a Mobile Gallery App from a client's Favorite list
Using images from an existing Client Gallery collection
1. Go to Client Gallery, and select the gallery you would like to create from
2. In the photos management view, select the photos you would like to add to the Mobile Gallery App
3. Click on the More drop down menu, and select Create Mobile Gallery App

Create a Mobile Gallery App from a client's Favorite List
1. Go to Client Gallery, and select the gallery you would like to create from
2. Navigate to the Favorite Activity section of the Activities tab
3. Locate the Favorite List, and click on the ... More button, and select Create Mobile Gallery App

For more information on all available options for creating a Mobile Gallery App, check out the complete article here.