changing diary heading?

hi

i'm a bit stuck on how to change my diary heading. it's not very inspiring lol. however, i don't know if it is because i'm on an apple mac that i can't change it. there's no option to change it at all.

can someone guide me please! i'm usually pretty good tech wise!

Go to the first post on your diary thread and click edit then go advanced and you will see on top of the post that you can change the Title of your diary thread.

Once changed...Then click save.

thanks