I have not been able to select any scouts to make any entries. They either stay grayed out on the computer or give a 403 error when logging in on my phone.
I assume you mean for T165? You are an ASM and have no permissions to do things.
Your Key3 would need to see these links
A major focus of the migration to Scoutbook Plus is to have positions mirror the positions shown in My.Scouting to ensure positions were reflected accurately in both platforms. The main purpose it to honor the guidance of our charter organizations and the positions they approve. Therefore, Scoutbook Plus does not use Legacy Scoutbook positions. Registered positions are used to provide base permissions. Some additional permissions can be added by the unit, however, there are restrictions on what can be given. See the updated Scoutbook_Permissions.pdf and the Scoutbook Plus permissions video for more details. Just as permissions are now limited - so is report access - https://filestore.scouting.org/filestore/scoutbook/Report-Permission-Access.pdf