Selecting update Indexed items

I know this may sound silly, but when selecting this- ‘Updating Indexed items’ does it matter what is selected in DT window? In other words if I am looking at a folder in the listing within the Document> Handbook>Chapters… for example, Updating will perform on everything within DT that is Indexed and NOT just ‘Chapters’ that is highlighted?

Yes-No? Thanks, Cletus

The selection of the main view (not the sidebar) matters.