Note:
The Template Manager is not available if you are using LiveCycle Designer ES within LiveCycle Workbench ES.
A template provides the basic structure for the form design and contains predefined file-creation information that LiveCycle Designer ES applies to the form design. Templates contain definitions of objects used in a form design as well as the form design’s page layout. A template can store any properties that you would use in more than one form design, including these:
Creating a template is very much like creating a form design. However, in a template, you design the layout and select the file settings and preferences that you would typically need in more than one form design. You can optionally include and define any objects that could be applied to more than one form design. Including layouts and properties that are common to many form designs saves you time because less work is needed to prepare form designs that are based on the template.
The Template Manager contains a variety of sample templates that are provided with LiveCycle Designer ES. It can also contain any templates you create and use with LiveCycle Designer ES.
In the Template Manager, you can also add or delete tabs, move templates between tabs, and determine where in the file system LiveCycle Designer ES stores templates. Each tab corresponds to a folder in the file system. By default, template files are stored in the LiveCycle Designer ES Templates folder.
See also 

About templates and the Template Manager