Using the "Edit actions" button appears a a new panel at the right side, just below the table. The panel is similar to the one here shown:
Another click hides the panel.
The panel can also be shown and hidden using the dates at the right and left, that can be found at the border.
For this purpose the standard button of the list must be used, ubicated below the list. For more information, please check out the help of the lists.
As you can see in the previous image, when an action is selected we can modify al its properties in the table. The meaning of each one of the properties of an action can be checked out in help of the actions