Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
I am getting a warning that another user is using the same email address. Do I have two accounts? If someone can help merge them into one?
PS: I think that I have one linked to my google account and one with username and password, so can you please delete the username and password one (if possible).
No. Currently, only registered scouters can edit advancement for scouts, with the exception of the scout themselves or their parent/guardian who can mark things Completed but not Leader Approved or Awarded.
However, a scout could mark it Completed, and add a note indicating who signed it off. They could even, if they have the technology to hand, attach a photo of the handbook page with the date and initials.