Create links

Hi,

We can create a table of contents with the bookmarks in the ddx when assembling several PDF documents to one big document.

Some documents are related, for example document number 12 is related to document 3, but in the resulting PDF there may be 20 pages and other documents between them. What I would like to do is create a link on the bottom of document 3, which when I click on it brings me to the page where document 12 is located. There I would like a link back to document 3. Something like creating links with Adobe X.

Is this possible through ddx commands? If so, could you please provide an example?

Thanks,

Patrick