I have the SuiteCRM ver. 7.10.10. I´m talking about the Listview in Contacts and Leads. The Option in UI will work for me also, Hope the coding its not to Heavy
You can add that HTML for the button. You can do it on top of an existing field, or create a new custom field just to add to the listview for this purpose.
Then you need some way to handle the button press - either inject some Javascript to do it, or maybe try it as an HTML form which the button "submit"s.
If you can get it working please post here how you did it! Thanks