Usability updates to text file importer

While using the text file importer first time, I found some options little confusing, here are some suggestions

1) Since edit options are in first screen, it is easy to miss
2) I did not realize that selecting multiple files means, multiple tables. There is no way to know which file you are trying configure
3) If user clicking, next, next , next then they do not really know what they end up with at the end and it will be a surprise

some suggestions may be
1) Move the Model names dialog as the first screen in the wizard
2) Then parse all the file that care checked, with current default delimiter and provide a screen with result table in a Tree format as in the SQL import wizrd
3) Have "configure parser options" option button for each table
4) Look at Libre Office Text CSV import for fixed file import suggestions and handling multiple delimiters