This may have been requested before although I cannot find recent mention. It would be great to have some way of linking papers that are closely related, such as an editorial that covers an original paper, or maybe a series of papers that describe a single clinical study. The former can be achieved by adding a link to the main paper in the editorial entry notes, and the latter by having common tags (e.g. SCOT-HEART), but the former is quite clumsy, needing to copy the link to open it in a new Paperpile window.
I know that Reference Manager has the linking facility, but can it be achieved in Paperpile more easily?