The Autohotkey script is called QuickSwitch and can be found in the discussion forum here:
Quick Switch
I prefer the current version
QuickSwitch-0.5dw7.zip
It works with many standard dialogs and the author is open for requests.
I run 2 file managers Total Commander and XYplorer.
Total Commander fully integrates Everything search and for XYplorer we have a nice script for this.
XYplorer can mix sort folders and files.
My prefered file manager is Total Commander for its better archive handling and preview plugins.
XYplorer has a very extensive scripting function.