'Show empty optional fields' function
The ‘Show empty optional fields' function automatically hides empty fields in the Create Issue dialog when you apply a template only in the 'Advanced Issue Creation’ mode. However, the empty fields can be made visible, need to click on the checkbox at the bottom of the dialog.
This feature is specific to the SITC Create Issue dialog and does not affect the standard Jira Create Issue dialog (the Template can be applied from the 'Manage Templates' page and from the Project Side Navigation panel).
Each time you apply a new template or re-open the SITC Create Issue dialog, empty fields will be hidden by default. If you want to see them, you'll need to check the box again.