Hello community!

I would like to ask for help regarding attachments. 

I have a binary field (x_attachment) in products template where it is possible to attach pdf's.  I use this for drawings and instructions.

Now i would like to have the attached file to be present in the activity that is created when a product is sold. It could be in a viewer or as a download. How can i achieve this in a simple way? 

I am on Odoo 14 community and i use studio to work my way around.

Regards

Peter