Add open button to Many2One in list view
When user consult data, it is often on a non-editable list view with relation like Many2One (or Reference). But opening the form view of the target is not direct as the user many need to start editing if possible or switch to form view.
The idea is to show an open button in front of the Many2One (or a URL like) like on form view.
Ref: https://groups.google.com/d/msgid/tryton/20171001081518.GF3626%40kei