Hi BND_
I am Dave, an Independent Advisor, I will help you with this . . .
Currently, it is not possible to create a custom shortcut to select one of the AutoComplete options in Windows 10, there is not even a registry hack to enable that
The best option is to suggest this on the Feedback Hub (Windows Key + F) and there, the developers will see that, if enough people look for that functionality, then they may implement the ability to assign a keyboard shortcut . . .