My thanks to contributors Jeffrey Brown, Macropod and Graham Mayor, luminaries all from across the world.

Moving the Msg Box higher in the Code has enabled it to work (and Macropod's MsgBox "!" also works.) But this is during compilation. There is still no activity (i.e. deletions) on the TestBed Text a copy of which is attached below. It deliberately has no Title.

The TestBed is just random text which, for this Project, has had Underscoring Formatting of graded complexity added. I use many macros now as I am unable to use the mouse with any accuracy. Please note that coloured or "weighted" Underscoring are not displayed within this Forum. Nor is Double Underscoring.

I am not sure what is meant by "Macro Support". And since all other macros work properly, does that not answer the question of whether it is installed? Please tell me where I can check this and when it is invoked. Thank you all for your kind contributions.



TEST.

On the Insert tab, the galleries include items that are designed to coordinate with the overall look of your document. When you create pictures, charts, or diagrams, they also coordinate with your current document look. You can easily change the formatting of selected text in the document text by choosing a look for the selected text from the Quick Styles gallery on the Home tab. You can use these galleries to insert tables, headers, footers, lists, cover pages, and other document building blocks.You can easily change the formatting of selected text in the documenttext by choosing a look for the selected text from the Quick Styles gallery on the Home tab.
END OF TEST.