After selecting the form to be deleted use the Delete command from Images menu or from the File List menu .
It is possible to delete all the forms of the group by using the Delete All command from the Images menu.
If is enabled the option to delete files from disk, the files are not only deleted from the list but also from hard-disk: you can also recover fiels deleter for a mistake using the Windows Recycle Bin.
The forms deletion in Workgroup Reader version is executed using the Input Station.