Adding custom field with path of external pdf file

I store all my pdf in a folder synched on a cloud service, and I use zotfile to give the pdf the same name as the citekey (using Better Bib Text). Externally stored files however cannot be opened from the IOs app.

As a workaround to be able to reach these pdfs from the app, I would like to add a custom field that looks like this: www.dropbox..... + citekey + ".pdf". Is it possible to do this?
Sign In or Register to comment.