Here's how to change the Cover Image, Title, and Description guests see for a Main Gallery.
Open the Main Gallery you'll be sharing with guests - skip this if you're already in the main gallery. Example of a main gallery highlighted below:
βClick the Menu button at the top right (purple circle with 3 white lines) to open the "Gallery Menu"
βClick "Welcome Page" on the menu list - under Gallery Settings. You might need to scroll down depending on your screen size.
Make all the necessary changes, and click the "Save changes" button



