Lets you know when an application you're monitoring has received an update
Add: Adds the application specified by Bundle ID to the watch-list
Update: Updates the version in the watch-list of the application specified by Bundle ID or selected in the watch-list
Remove: Removes the application specified by Bundle ID or selected in the watch-list from the watch-list
Refresh: Updates the information in the watch-list
Enter/Return Key: Adds the specified Bundle ID to the watch-list or updates the selected application
Delete Key: Removes the selected application from the watch-list
Drag & Drop: Drag & Drop the Bundle ID onto the grey box to add it to the watch-list