One of the harder things to do in Adobe InDesign, surprisingly for a page layout tool, is to create multilevel or outline format numbered lists. The right way to accomplish this, according to the folks at Adobe, is to create a Style for every level of the list you’d like to have! Here are Adobe’s instructions on how to do so (This content is taken directly from https://helpx.adobe.com/indesign/using/bullets-numbering.html#create_multi_level_lists):
I have a word document with a table of 6 exact cells on a full page table. In those cell areas I have been printing tickets with a list and a mail merge and updating labels. I call to an excel list of 1-2000 and then I generate all the pages through the Finish and Merge option. This all works perfect. I get 2000 individually numbered tickets to print...however...I then have six tickets printed on a page of paper with ticket numbers 1, 2, 3, 4, 5 ,6 then the next page has 7,8,9,10,11,12. This is fine but I then have to cut and stack these tickets in groups of six and at that point none of the numbering is sequential. The tickets are basically random.
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 numbering display also affects how you specify page ranges when printing and exporting the document. However, the numbering display does not change the appearance of page numbers on document pages. numbering in indesign