How do I add my great grandfather who is a read only person?

Madelynn Grace

My great grandfather is a read only person. On my family tree I am trying to merge my incorrect great grandfather to my correct great grandfather, but it won't allow me to merge them because the correct one is a read only person. How can I merge them, so I have my correct great grandfather on my tree?

Graham Buckell

Are you sure that the incorrect one is a duplicate of the correct one? Otherwise unlink your grandparent from the wrong one and link him or her to the correct one.

See

https://www.familysearch.org/en/help/helpcenter/article/how-do-i-correct-parent-child-relationships-in-family-tree