How do you correct a name?
I'm new to this site and have just started to add family. I noticed that some are already in your main tree. When clicking on my grandfathers name I noticed his middle name is incorrect. How do I go about getting it changed to the right name? I know I'm right as my Aunt is still living and she shares the same middle name.
First I would check the sources and make sure the name as shown isn't on one of them. If the name as there has a source, I recommend you do 2 things instead of 1. 1) click the pencil in Vital information to the right of name and edit the spelling as you see fit. 2) Go to the Other Information section and click "ADD ALTERNATE NAME." Then you can let people know his name was also recorded differently in at least one source.
I guess I need to add that you must make sure you are, in fact, dealing with your grandfather and not a different man with almost the same name. Is all OTHER information correct, including his parents, siblings, spouse and children?3
In addition to Gail's excellent advice, I suggest you read up a bit more on FamilySearch's Family Tree: you write "in your main tree", as if there were also individual trees here, which is a misconception. Profiles you enter for living people are private to you, yes, but they exist solely to connect you to your deceased relatives, so I would hardly call your private space a "tree".
I suspect, however, that we're a bit too far ahead already, because I think your question stems from only having looked at a tree view, not at any profile pages. There are no pencil (edit) buttons in tree views. To go from a tree to a profile page, click a person's name so that the person card pops up, then click either the name or the "Person" button on the popup.3