While reviewing a design proof, your clients can suggest a replacement image(s) from any gallery you have attached to it. This means they can be as specific as possible in their desired changes, eliminating any unnecessary back-and-forth. 

When creating a design proof, you can attach any number of galleries available for your client to choose from to suggest replacements. If a design proof is attached to a shoot that also has galleries, those galleries will automatically be attached to the design proof when you make the design proof. 

To manually attach a gallery to a design proof, click the "+ Attach" button in the "Replacement Galleries" section in the design proof settings. 

To remove a gallery from a design proof, click the "x" button from an attached gallery in the "Replacement Galleries" panel in the design proof settings.  

While viewing a design proof, your client can click anywhere on any spread, and a "change request" bubble appears. They can type their comment in the text box and click the "Add" button. 

To see the gallery images available, they can click the "Suggest Replacement" button, and a gallery view window will open, where they can make their selection.

If your design proof has multiple galleries to choose from, you can choose which gallery you want to replace the image with. This is handy for wedding photographers who have a separate engagement session gallery to choose from.

When your client suggests a replacement image, the filename(s) and gallery name will be copied into the comment box so you know exactly what image (and from which gallery) they were referencing.