It is better practice to attach a custom template so you can be sure the style definitions are retained and can be archived with the document(s) associated with them. This will work, but it can create future problems if a different document based on Normal used different settings - and then you re-opened this one. Your instructions cause the TOC styles to be modified for the default template (Normal.dotx). Worse, subsequent levels based on TOC 3 will change as well.Ģ. For some obscure reason, the default is “on” - but with it turned on, any direct formatting change made by a user to an instance of that style will automatically change the style definition! So, if a user decided to make a given TOC 3 line italic, all TOC 3 lines will suddenly become italic. In the Modify Style dialog, be sure to turn off the “Automatically update” checkbox. However, there are two additional points I’d make:ġ. Your method is identical to modifying the TOC x styles with the Modify Style dialog - although I grant that accessing it through the ToC dialog may seem more intuitive.