As you number headings, figures, tables, and other elements, it can be tedious to keep track of number order and nesting. You can automate the numbering of elements by clicking Insert > Number (Dynamic). This will create a number that will update each time you edit the page.
Example Automatic Number 1
Example automatic number 1.1
Example automatic number 1.2
Figure 1
Example automatic number 2
Figure 2
Example automatic number 2.1
Automatic Number Detection
If you have a chapter that already has manual numbers in headings or figure titles, you can also have the system attempt to automatically find and convert them to dynamic numbers by clicking Chapter > Functions > Find element numbers.