Android App _ Host Saved Messages

[Donita0]

Android app under Hosting -  offered a way to save Check In instructions (via photos).  Added one photo and then hit Publish thinking I needed to do that to move on.  That saved and now I cannot edit.  How can I edit this to add more photos?   Searched everywhere I can think of.  On Airbnb.com on laptop only allows editing of text saved messages not the saved message in the mobile app.   HELP!