Including another templates
A complex design, require split of the template. Then you can include the design's parts in a container template.
Syntax in templates
{% var with path to the template's part %}
OR
{% path/to/the/template/part %}
Example
part.tpl
Hello world!
index.tpl
This is the container template:
{% part %}
Output
This is the container template:
Hello world!
Important:
The engine does not accept that a template is included itself.