Components of fields of a screen

Question

HI, I am really confused by the fields of a screen.

I am trying the JIRA service desk. The default field of the Resolved screen does not have the "comments"  field, but it renders the comments field automatically. Why? I am really confused by the fields on the screen.

For example, I cannot create a screen similar to the Resolved screen because  I cannot access the built-in comments field.

Is there any rule which is not documented?

Jobin Kuruvilla [Adaptavist] · Accepted Answer

Comments are automatically added to the workflow transition screens. If you create another screen with the 3 fields listed there, it should be similar to the "Resolve Screen".