First of all, I am a newbie to EpiServer.
I want to add a simple string of text under the Name field when creating a page. This string will be instructions to my users on how to name the page. Or if there's a better way to do that, like replacing the Name label to something else.
Welcome to EPiServer development! I think Alf's post should point you in the right direction: http://talk.alfnilsson.se/2014/12/18/display-help-text-in-on-page-editing/
Let me know how you get on