This is available on the Shell main tab, under Articles menu.
There are three commands:
•Show Articles within an hour to deadline
•Show Articles within 30 minutes to deadline
•Show Articles within 15 minutes to deadline
Technical note
This requires extended search conditions to exist under the EditorialShell base query. They might not be present in your custom Shell4_Config.xml. In such case, request a copy of the code to the support.it@miles33.com.