I am having difficulty creating an automation in the Description field for story items, bugs, and improvements in Jira, using the expansion mode, which I activate using the "/" function and search for the word 'expand'.

The idea is that when creating automation, the Description field should already display the structure as shown in the attached example, where clicking on the PARENT name expands the items nested within as children, maintaining the same formatting as the example.

Could you guide me on how or the best way to do this in Jira using automation?
Thank you.