The latest Gmail app update (26 MAR 2013) introduced a feature for devices running Android 4.1 (Jellybean) and higher wherein a user could directly archive/reply to an email from within the notification pull-down.
The "What's New" section on the Play Store however also lists the ability to delete an email.
Android 4.1 (Jelly Bean) and up:
• Reply, archive or delete from notifications - no need to open the app
I'm running CyanogenMod 10.1 (Android 4.2.2) on my Samsung Galaxy S2 (i9100) and the options for Archive and Reply show up when I pull down the individual email notification but nothing for Delete shows up, even while in Landscape mode.
Any ideas on how this can be implemented or a setting that I've missed to enable this functionality?