Hi gharnach,
Welcome to Visual WebGui
I assume you are referring to designer behaviour only, when you drag and drop a ScheduleBox to your form. If so, then in it's current implementation, ScheduleBox does not have any designer, and what you will see in your designer is an empty box. In addition, even when adding events through designer in the Events collection, those events are not written to the designer generated code, so, the only way to add events to the ScheduleBox is via "manual" coding. This is being addressed in a future release and you can follow our progress on that tracker entry here.
The code necessary to create events and add them to the ScheduleBox can be seen in the CompanionKit's sample on the ScheduleBox. View this link here for instance and scroll down until you see the C# and VB.NET code section and look at the Event.cs source file (or Events.VB if using VB.NET). Simply put, you create an instance of ScheduleBoxEvent and then you add it to the ScheduleBox's Events collection by calling ScheduleBox1.Events.Add(....).
If you didn't know already, then the ScheduleBox is one of the Office suite controls, which mean you will need to add a reference to Gizmox.WebGUI.Forms.Office (and if using "with sources" type of installation, also Gizmox.WebGUI.Forms.Office.Design), and you will also have to register your control in web.config. See more info on control registration here.
Hope this helps,
Palli