A  search field in your website is a very useful tool, especially if the site has a complicate structure with a lot of information.
If you wish to add an internal search field within your website please proceed as follows:

1. Go to step 1 "General Settings", select "Edit Grafiphic Template" and click on the  "Insert search field" icon Above your header/footer on the right hand side). 

 2. The search field is now active and you have the possibility to define its final position and size.

To make it work properly you have to verify that the server on which you are publishing your web site supports the PHP 5 language.