Start on the Instagram grid of the profile with the individual post you'd like to capture.
Click on the photo you wish to capture. It will display as an overlay on top of the page you were just viewing.
Click “Scroll” in the Page Vault Browser menu bar, and keep the radio button set on “Format post for capture and expand comments.”
If you’d like the post to automatically capture after expanding and scrolling, check the box “Capture after expanding and save to folder,” select the destination folder, and click “Expand and Capture.”
A new tab will open with just the posts that you selected. Comments and replies will automatically open, and once they are open, the capture will automatically save to the selected folder.