Mac OS 7.5.3 Command-Delete

I'm running Mac OS 7.5.3 under Sheepshaver on a Mac mini with Catalina. I remember there was a Command-Delete ability to send files and folders to the trash with the aforementioned keystrokes. What I can't remember is what it was that enabled this. A Control Panel or Extension or a Utility of some kind? Any clues would be much appreciated.