The cloud is actually displaced forward by 26 periods (ie the values of the cloud are based on the data of 26 bars back) however because an efs does not plot if there are no price bars you simply don't get the portion of the cloud that goes beyond the most recent (ie last) bar. In order to see that portion of the cloud you would have to modify the script to draw it rather than plot it. You can find a basic example of the logic required to draw lines past the last bar in this thread.
If - as you indicate - you are unfamiliar with programming in EFS and are interested in learning then you may want to start by reviewing the JavaScript for EFS video series here :
http://www.esignal.com/support/esignal/javascript_efs.aspx and the Core JavaScript Reference Guide here :
http://www.esignal.com/support/esignal/javascript_efs.aspx. Those will provide you with a thorough introduction to programming in JavaScript which is at the foundation of EFS. Then go through the EFS KnowledgeBase here:
http://kb.esignalcentral.com/displa...dt2WJi7&cid=4&cat=&catURL=&r=0.55413019657135 and study the Help Guides and Tutorials which will provide you with the specifics of EFS.
