I'm assuming you have a CC subscription; if not, let us know.
This is the link for info re using Encore CS6 with CC, updated for CC 2014 and the cloud desktop install.
http://helpx.adobe.com/encore/kb/encore-cs6-installed-cc.html
It has links for getting the library (which is not installed with Encore) and a workflow with CC versions.
In the cloud desktop, assuming you have PR CC 2014 installed, you are looking for this:
