A panel can be added to the main form by creating new PanelAddArgs, and then calling the PanelAdd method on the AitApplicationProxy.
To update the panel attach a handler to one of the Author-it plugin events, such as OnObjectSelect.
Sample code
_proxy.PanelAdd(new PanelAddArgs()
{
PluginName = "Statistics",
Panel = _panelMain
});
_proxy.AddPluginToAitEvent(new AitEventAddArgs()
{
PluginName = "MainFormOnSelectionChanged",
EventType = AitEventType.OnObjectSelect,
OnAitEvent = _panelMain.OnSelectionChanged
});