Lingon is a graphical user interface for creating and editing launchd configuration files for Mac OS X Snow Leopard. You can use launchd on a Mac to launch scripts and applications whenever something special happens or at a specific time or periodically. You get all launchd configuration files in a list to the left so you can easily see all and choose which one to edit.
Editing a configuration file is very easy with this program, it has two different modes. Basic Mode which has the most common settings readily available in a very simple interface and Expert Mode where you can add all settings either directly in the text or insert them through a menu.
Based on the great Lingon 3 and extends it with new features like running jobs as root and at multiple dates.
Embed a F-Script interpreter in any Cocoa application
Graphical editor for launchd’s property list files.
It can load and unload your launch agents from the status bar.
The PM Script Builder walks you through the process of creating a script.