Despite your best efforts to design a usable application, your users are bound to have questions. UI Builder's field-level user help lets you establish a set of reusable help topics that can be launched with the click of the F3 button. An attractive user help dialog is displayed with your text, and optionally a hyperlink to more information. The VBA code is provided for you by UI Builder, all you do is paste it into your form.
After you have defined your help, changing the text of the help topic is easy. Return to the User Help Administration screen, and change the text. No need to change any VB code or re-publish user's documentation.