Move New Spam to a Separate Folder (Spam Box) missing in cPanel Spam Filters interface

Symptoms

When navigating to cPanel >> Spam Filters, the "Move New Spam to a Separate Folder (Spam Box)" option is missing.

Description 

In order to use "Move New Spam to a Separate Folder (Spam Box)," the following setting must be enabled in WHM >> Tweak Settings:

Enable Apache SpamAssassin™ Spam Box delivery for messages marked as spam (user configurable) 

And the following feature must be enabled in WHM >> Feature Manager for the feature list used by the package a cPanel account is configured to use: (See: How To Verify If a User Has Access To A Feature?)

Apache SpamAssassin™ Spam Box

Workaround

Enable the following setting in WHM >> Tweak Settings:

Enable Apache SpamAssassin™ Spam Box delivery for messages marked as spam (user configurable) 

And ensure the following feature is enabled in WHM >> Feature Manager for the feature list used by the package a cPanel account is configured to use:

Apache SpamAssassin™ Spam Box