You can modify these variables, and you can create your own. Only to find that if anything changes or the index re-flows, you need to update them all manually. InDesign includes several preset variables, such as Creation Date and File Name.
Changing the numbering display affects how pages are indicated in the InDesign document, as in the Pages panel and in the page box at the bottom of a document window.The biggest obstacle that I needed to overcome was how to. Headers and footers can include such items as page, chapter, or section numbers. You can add many of these items by using text variables. In that case, if the terms in a page change, all running headers will automatically change accordingly. Ever since Adobe included the use of Variables in InDesign, I have been thinking about ways to use it to create auto-generated index headings. The numbering display also affects how you specify page ranges when printing and exporting the document.
Well, after trying lots of different things, I finally came up with a simple solution that anyone can use.First of all we will create a running header for publications like a dictionary, that indicate the first word of each left page and the last word of each right page. How to change the header information in an InDesign book template that uses master page to create header layout. Now this can be set up to happen on-the-fly by simply using Text Variables and invisible Nested Styles. And the documents filename and creation or modification date.