Actions On Save
In the "Actions On Save" tab, you can activate creating links to the picked issues and copying field values.
Enter the following information:
Link Mode: Determines if issue links should be set in addition when selecting an issue with the picker.
For example, in sync mode, a link will be created between the issue you are on and what you selected from the
issue picker each time you change the picker’s value.Link Type: Select the link type for the created link.
Remove links: Select to enable the Issue Picker to remove other links with the same link type on the issue.
Fields to copy: Select the custom fields you want to copy from the selected issue. Note: This option is only available for a single select issue picker.
The field values in the actual issue will be overwritten with the selected issue’s field values.