Hierarchy: TObject - TPersistent - TComponent - TCustomActionList - TActionList
An ActionList is a list of actions that can be used with different parts of the user interface. Actions can be attached to menus, popup menus, toolbar buttons and speed buttons. With an action list defined there is no need to define separate actions for the different parts of the user interface, the same actions can be attached to each of the other controls.
The ActionList component has just four properties, including Name :
Use this to add a list of images that can be associated with an action in the list.
To define an action list add one to a form and then double click it to open the action list manager:

To add a standard action (from a library), right click the panes and choose 'New Standard Action'. A tree diagram of pre-defined system actions is provided:

You can also add your own actions to the list. When the list is complete close the action list and then use some other control to make the actions available to the user, for example from a main menu, a popup menu, a toolbar or a speed button.