When editing “complex” documents (adding index entries make a document “complex” for this question), always work with
Formattings Marks and
Field Shadings enabled so that you can see where hidden formatting/markup is located.
Indexed words have a light gray background. Hover your mouse over it. A tooltip appears displaying the index entry. Right-click and
Index Entry to edit.
Warning! If spelling checker is active and the word under the shading is underlined with a red wavy line (denoting a spelling error), the pop-up menu does not offer
Index Entry. So, fix the spelling mistake first or disable spell check.
The Edit Index Entry dialog allows you to modify your entry. You can also navigate from entry to entry (without the need to hunt for them) with the solid black arrows above the buttons.
Thanks to the navigation arrows, it does not real matter which index entry you select to begin reviewing your document.
To show the community your question has been answered, click the ✓ next to the correct answer, and “upvote” by clicking on the ^ arrow of any helpful answers. These are the mechanisms for communicating the quality of the Q&A on this site. Thanks!
In case you need clarification, edit your question (not an answer which is reserved for solutions) or comment the relevant answer.