Hello,
You can import pages from different demos like in this video – https://youtu.be/wkIKN2IyEZI Theme Options > Header builder > All departments menu > All Departments Visibility > Opend. Here you can find videos about the header builder – https://www.youtube.com/watch?v=RbdKjQrFnO4&list=PLMqMSqDgPNmDu3kYqh-SAsfUqutW3ohlG
Regards
