How do I add note box to a family tree?

Question

Hi

I have imported a .ged file to create a family tree.

I want to add a note to a person, eg family emigrated.

As far as I can see, such a field is not in the GEDCOM specification,  hence I want to add it manually.

So, how do I do it?

Sorry if this is a nobo question, I have only recently found yEd and I am struggling.

Thanking you

UPDATE

I have just sat down with a coffee and done some joined up thinking. Problem solved, it was easy!