At the request of, or challenge from I should say, Jeff Harrison - I have added an extra feature to the above macro. If you run the macro and press the Create Inner Shadow button you get a black inner shadow, or white if the White Shadow checkbox was ticked.
NEW: Pressing the button with a PLUS sign on it expands the macro interface and provides a button which opens the colour picker dialog. From there you can choose a custom colour for the inner shadow. After choosing your colour press the Apply Inner Shadow button next to the custom colour button to create your inner shadow. I was even kind enough to use the Americanized spelling of the word colour: i.e. color
Please excust the over-compressed video...here is the macro in action (the macro itself is attached):
Thank you so much. It is a really useful macro.