Main Clients can hide any photos, GIFs, or Video Clips of their choosing in the gallery (not Featured Videos or Slideshows). The hidden media is only seen by you as the photographer and any Main Clients of the gallery. Guests or Photographer Invited users will not see the hidden media.
We have a white-labeled article to help your client with this process:
This article belongs to our Client Help Center, built specifically to assist your clients using the gallery. The Client Help Center is white-labeled, meaning we don’t mention Pic-Time or other photographers, so you can share it as part of your own brand.