All,
I followed Shauna Kelly's excellent tutorial on making multilevel lists and linking the lists to preformatted heading styles, though after I reread her article, I realized I didn't apply a heading style to every single level available since I wasn't planning on using all of them
(I went down to 3 originally, then down to 6 later in the document). When I go back to make changes to my multilevel list numbering, the styles associated with the levels I did format don't appear to be there anymore. The numbering appears to work correctly,
but only down to a certain level (usually 5 deep or so), when it reverts to the default numbering scheme. Was the original failure to connect heading styles to numbering the issue, or is it something else?
If this is unclear, please let me know and I'll explain more clearly.
No, it really doesn't matter if you only format/change a few levels--except that if, as you found, if you do need to use them, you'll have to modify the list style. And you must, as Suzanne says, place the cursor in the first heading 1 (aka first numbering
level) instance in your document before clicking the Multilevel List icon and then right clicking your list style's badge and left clicking Modify.
By the way, if you clicked Define New Multilevel List, you created a new list that is not connected to the list style you created by following Shauna Kelly's instructions.