Options menu in Instant Text

To stop getting expansions when typing a single letter you go to Options/Singles and put the Single-Letter Abbreviations Lines to 0.

To not see the Word advisory go to Options/Screen Elements and uncheck Word Advisory.

The Singles10 you have included in your glossary can be taken out by clicking on the Includes button in the Glossary Viewer. Highlight the line where it is mentioned and click on the Delete Include button. Then click OK and close the Viewer.

The singles glossaries are special glossaries activated in parallel with any glossary you might have in the active glossary list. There is no good reason to include them.