Trigger : All button actions have a Trigger, which is an event that causes the action to be executed. Triggers include Touch, Touch and Release, Toggle On/Off, and Now. Now executes "on load", which is a really powerful feature, especially when used with Delay.
TargetObject : Nearly all button actions have a Target Object, which is another object that experiences the action. For example, a Play Video action targets a video object and causes it to play. The Go to Page action's target is a page, and the Play Sound action's target is a sound. The Stop Sound (Stop Playback) action does not have a target. It simply stops the active playback of audio.
Note: Actions cannot target videos within a container.
Delay : All button actions have a Delay, which is the number of seconds between the trigger and the actual execution of the action on the target. A Now trigger with a delay puts a timer on an automatic action, like navigation to a new page.