- I think that your only choice would be to upload slides that are already in portrait. When you create your portrait sign feed, you would have to uncheck all of the available options as they would appear sideways. I was going to suggest that you add a feature request, but I just found the one you made -- I upvoted it. If anyone else would like to see this as a feature, go to this link and upvote! https://community.logos.com/discussion/247570/vertical-portrait-view-of-digital-sign-feeds#latest