Ok, so i read the documentation.
It lists the available attribute of a file token:
CssClass
Width

This is no attribute name: required.
Moreover, when i use the required=false attribute,
i'm still forced to upload file.

What should i do to just specify link without file?

Thanks.

Ok, thanks.
One more thing:
I put the file with ftp on server, then i changed manually in db the fileName
to link to the file.

The module now treat this as a link but tries to open pop-window
in some strange way that caused explorer to block the file.
It happens on two different computers.

Thanks again for your rapid answers.
Meanwhile, can u tell me, where is the code which opens the pop windows
so i will cancel it and use direct link?
All i need is the file name.