[Zope] how to upload a lot of files as Tal (Page Template)

Hi I try to use Webdav and FTP to upload Tal files (Page Template) to Zope but when I do that Zope sees my Tal file as DTML Files (Sorry Objects). I have to use Webdav and FTP because I upload a lot of files every time. A night job does it for me. I can not use Zope manager to do that because it just manages one file each time. Thx Frasse