Properties and Actions Panel
Properties and Actions panel displays the properties (actions) of the current selected component. There are generally two pages in it: Properties page and Actions page. The Actions page only exists for these components which you can add actions to. You can edit the components properties on Properties page. And you can add events to components on Actions panel when it's available.
Tip: You can also choose right click to add action in scene , button ,hotspot,image,flash,video component