Can I import an InCopy document using my custom datalink?

Hi,

I use a custom data link to import images and texts, but it apparently doesn't work for plain InCopy files.

I get an error: "Cannot place this file. No filter found for requested operation."

I don't want to create an assignment, just want to be able to import the text and maintain the link like I can with other text documents (including Word for example)

Any help is appreciated!

Bart