sets the free form flag. When this flag is true, you can move with the cursor anywhere on the screen, even where there is no text present (however, you cannot move inside the space expansion of a TAB character).
If you invoke
FreeForm with no arguments, it will toggle the flag. If you
specify 0 or 1, the flag will be set to false or true, respectively. A lower
case ‘f’ will appear on the status bar if the flag is true.
The issue free-form-versus-non-free-form is a major religious war that has engaged users from day one. The due of the implementor is to allow both choices, and to set as default the correct one (in his humble opinion). In this case, non-free-form.