@Will I want to be able to tab indent HTML within HTML blocks. I just edited my question in the hope of making it more clear

This works with links over images, but not straight text links. This noreferrer issue is driving me nuts

Thanks for that. So it should be wp instead of woocommerce_show_page_title in the add_action() function.

not good for SEO

The answer to this question can fill books. I would suggest you research how SQL commands can be used in PHP to access, read and manipulate data in .msb files and then come back with a more specific question when and if you run into problems.