Enter here general information data like the application title (eg Accounting) and the module text (account) so that the title of the pages will be - Accounting - Work with accounts/Add account/Change account.
Application name refers to the actual naming of the objects.
Enter here information about the table's columns. Apart from name, type and lenght you have to write specify the column heading (in the PF), if it is a key and the display name (how it will appear in the add/change/copy/display screen).
If you want this column to appear also in the browsing section (subfile) just tick the appropiate checkbox and choose a name for the header information. Also you can chose if this column can be blank/zero capable.
Are any fields (group of fields) validated against a file - external key? Enter here the file name and the fields to be validated.
Is a description in this file that must appear in the screen? Provide its details (variable name, positioning, display name, etc)
Final step - press the button to generate the code as a zip archive or just to view the sources.