Follow these steps to create a client gallery:

1. Click Blog | Store | Clients at the top left corner of the admin panel
2. Click Manage Client Galleries
3. Click Add New Client Gallery
4. Add the image details: Title, Text Description, Watermark (optional), and Photos. You may also edit the title of the image by double-clicking it. You will be able to see the field where you can edit the image title. 
5. Click Done to confirm.