Step 1: Now position the cursor at the end of the page to be inserted, and select Insert/Delimiter/Next Page. This can realize the paging function.

Step 2: Insert page/page number;

Note: it has been paginated just now, so you should insert the page number twice. Select Roman characters before the table of contents and Arabic page numbers after the page numbers. I just tried this. It must work. Good luck!

You changed the question again. What you want now is to divide it into three parts. The principle is the same. Add a delimiter after the abstract and a delimiter after the table of contents. Just like this, it is divided into three parts, and each part is inserted with page numbers, so that it will not affect other parts. Give it a try!