For the first question:
Step 1: Place the cursor between two words separated between pages, and click Insert-Delimiter-section break Type-Next Page. Of course.
The second step is to edit the header and footer of the first page. After editing, enter the second page, which is the second section. In the header and footer edit bar that opens, uncheck "Same as above" (some versions show "Same as above"), and then delete the contents of the header and footer, especially the header. After deleting the word, press the Delete key to delete the horizontal line.
The second question:
Insert the header and footer at the beginning and end of a page (hereinafter referred to as the current page) in the middle, and insert-separator-section break type-next page respectively. If there is a blank page in the middle, just use the back key to connect. Then in the header and footer of the previous page, uncheck the "Same as before" ("Same as the previous section") button in the header and footer editing fields (this is very important, you must do it first! ), and then delete the contents of the header and footer. Next, double-click the header of the current page to open the header and footer edit bar. Because the header and footer content of each section is the same as the previous section by default, it is best to cancel the "Same as before" button before re-entering the header content. Click the "Header and Footer Switch" button on the right side of the edit bar to switch to the footer of the current page, click the third button on the left "Format Page Number", write the appropriate page number at the starting page number below in the pop-up dialog box, and then click the first key on the left side of the edit bar to confirm. As for the next page, the processing method is the same as the previous page. Need I say more?
Anyway, remember two things:
1, section break's role is to edit the headers and footers of individual sections. If you need to set different headers and footers, you should first think of inserting headers and footers.
2. By default, the content format of section break is the same as that of the previous section, in other words, the current section is bound to the header and footer of the previous section. So be sure to uncheck the "Same as before" button first, otherwise the change of this section will be implicated in the previous section.