Toggle tween tag and folder/filename navigation all models

I want the ability to choose between the current Tag-based navigation and folder/filename.  I you use folder/filename this should inherently eliminate the long database  refresh in MSC mode.  Once the file is playing, the tags should be able to be displayed regardless by cycling the center button on the clip/e200.

When toggling to Tag navigation, a warning that “You have xxxxxx songs, database update will take approx xx:xx, are you sure?  Y/N” (time est)based on number of files on the device.