Many Mac keyboards do not have a Forward Delete key. DeleteKey is a very useful app that Binds Forward Delete to any key or combination of keys on your keyboard. You can also use Option + DeleteKey Hotkey to delete forward words.
You can enable/disable it anytime by pressing the custom Pause Hotkey or by clicking the Enable button in the Menu.
*** You must give the app Accessibility Permission to execute the Delete Forward key from System Preferences -> Security & Privacy -> Privacy -> Accesibility -> Add DeleteKey to the list ****