Tracker header can be applied to ENTIRE Site
To configure the settings you will need to reach them from the hamburger menu at the top left of the Elementor interface of each Elementor Editor page.
Here you can configure Tracker Header by enabling the setting, this will be valid for the whole site.
Tracker header will paste the header of your site while scrolling the page. In addition, the warhead will disappear during the scroll but will reappear with a small swipe upward. This will help to always optimize available space, especially on mobile devices.
The basic setting is to indicate the css selector of the wrapper that must transform during the passage between the pages, this article can help you understand what it is based on the theme you are using, it is very simple.
In the "Selector Wrapper" item you must insert the css selector (.class or #id) which collects the HEADER. In some cases you will have to manage more than one element in the header such as the top-bar, therefore you can also define a series of elements separated by commas (,) in order to collect them and apply the Tracker Header to all.
For example on dynamic.ooo the configuration is the following:
With no selector on the page, you will see no matches.
When the selector coincides, it will be indicated in green. From now on, the parameters for configuring the characteristics of the Tracker header will be available.
By enabling this option the header will float fixed on the page, a z-index is allowed.
You can apply the Tracker Header based on the device: