Is achieved by prepending {|number} to the subheadings. Ensure that the numbers are in the correct order.
Example 3-1. Non alphabetical ordering of subheadings
heading {|1}C {|3}A {|2}B
Is output as
heading C B A
The numbers must have the same number of digits so prepend extra zeros if required.
Under certain circumstances entries can be merged when you don't want them to be. To prevent this append {|number} to the entries. Use the number to control the ordering.
Example 3-2. Preventing entries from merging
*entry* 1 entry 2
Is usually output as:
*entry* 1, 2
So instead use:
*entry*{|2} 1 entry{|1} 2
To produce
entry 2 *entry* 1