Introducing Simon 5!
Simon version 5 is now available. It is a massive update, introducing a much-requested feature: syncing the Simon data between multiple Macs, plus a Simon Status service, a Link Checker filter, improved Find filter, iMessage and Speak Error notifiers, a new app icon, and much more.
Important: please note that Simon 5 requires a minimum of macOS 10.12 (Sierra), and is a paid upgrade from Simon 4. Purchasers since September 1, 2020 automatically get a version 5 license (that also works in previous versions).
Re: Feature request: Ability to delete individual events ...
That is something that has been requested in the past, and I might add in a future version, though isn't currently scheduled. Thanks for supporting the idea, though!