Edit shared documents

Hello.

First, thanks for a great product.

I'm mystfied why it's not possible for others to edit an shared document. In many cases people would want a document to be shared so that others can contribute to the content. A far as I can see this is not possible with Zoho VO 3.2 without moving the document to a persons personal area, edit it, and then put it back as a shared document. This making it a second document to the original.

Can you clarify if I'm right or shortly give a howto if it is indead possible to edit a document that one do not own.

TIA
Kent Knudsen, Denmark