Hi! Having seen a few tutorials, I am creating a book design and want to set up running headers for chapter titles. I go to Type > text varyables > define and work through the process of setting up a paragraph style. When I get back to the define interface at the end, the "INSERT" box is greyed out. The book is going to gave 12-15 chapters over 200 pages, I could really do with automating this process, rather than typing it all in.
In order to insert the variable you need an active text cursor where you want it.