Just in case it wasn’t obvious, it is the final video in the Glossary group, “Adding Markup to multiple words with glossary entries as a batch process”, that has the information that you need. That tells you how to insert the glossary word markup in your text: \w text|glossary_entry \w*
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The video only talks about using this markup to define links in Scripture apps, but I just want to point out that Scripture typesetting tools (like PTXprint) are also able to turn that markup into an asterisk before the glossary word (or a number of other types of markup) for the PDF file and printed output.
Just a couple of other comments on this process. 1) In general you want to do the linking of the glossary entries as the very last step before printing. If you make other changes to the text after the linking, it’s possible that not everything will get marked as you wanted. If you have some linking from the past, but have since made changes to the text, it probably would be best to “Unlink all renderings from the glossary…” (in that same Biblical Terms window menu), and do the linking again from scratch. 2) For marking glossary entries in a printed text, you probably don’t want to mark All Occurrences as shown in the video. It’s probably more reasonable to mark every occurrence in an app (the word would just be changed into a link), but in printed forms, you probably don’t want every occurrence to be marked if there are, for example, several occurrences in a verse or two. In most typesetting I’ve done recently they chose to mark “First occurrence in every section”, but chapter or paragraph are also options.