Thank you so much for your help on this... Learnt over the day to assign the different heading styles, assign ToC styles, get each ToC into a table column and wrote a macro to update all in one go (have to make it foolproof). It works like a treat, although to begin with it kept messing my main ToC at the start of the document (probably before I worked out what I was doing with styles). All good now, thank you again for your help.