Implement Widget in header

Good afternoon, first of all I want to congratulate you for your plugin. It works smooth.

But I want to implement it in the header of my website not as a widget, in the same way you have it in your website: morerentalcars.com

Is it possible? And could I put my own Client ID on it?

Thanks a lot

https://www.ads-software.com/plugins/car-rental-widget-by-morerentalcarscom/