Usage of "update all domains" in Word

I believe there are a lot of people who use WORD. Everyone should have this experience: After adjusting the positions of chapters or paragraphs in the document, it is a headache to modify the chapter number or illustration number. For example, section 2.2.3 and Figure 5.3. There are many solutions to this problem on the Internet, such as cross-reference and selective pasting. Most of these methods use the domain (which is the most distinctive of Office). When writing a document, Word will not automatically update the domain. When we modify the text in a place, the most desired text in the entire document is automatically changed, which is "update all domains ".
The method to update all domains is actually very simple.
1. Select the text to be updated (of course, you can press CTRL + A to select all documents)
2. Right-click the selected text to update the domain. (When the document is large, wait for a while)