The properties tabs appear when you click an event (that has one or more actions) or an action in the Events pane.
When you click an event, you can use the Execution tab to configure settings that apply to all the actions for that event.
When you click an action, you can use the corresponding tabs to configure the settings for that action. The properties that are available in the properties tabs vary depending on the action that you select. For more information about the available action properties, refer to the help page for the specific action that you are configuring.