Creating Custom Route

I want to create a custom route on my laptop and then use that route in my car.

First problem - I’m using Windows 11 and went to Waze.com site and entered mu user name and pswd.
When I type in in my starting point and ending point the addresses go away when I leave the address fields. Any suggestions.

Second thing - if there a quick start quide for creating routes on laptops?

Waze is not designed to create custom routes. It is designed to find the best/fastest route at the time of routing.