The following post shows you how to customize a node template.
Drupal – Customize Node Template with Panel

I would like to add a year filter in the above content pane. But the exposed filter would not work if you just expose the year filter. In this case, you will need to enable the Use Panel Path.

 

The year filter should work now.

 

Done =)

Reference: How to create a Panel with an exposed form created with a View