I have posted my file in "save as V6" but use these last Make (2017,2016,2015)all tested! π
See from your Doc that 2015 is out of use your plugin but must be fine for 2016 and uper...
I will try with your uper left selected as first segment...
Always not result when OK is pressed! π’
If that can help : verbose don't make nothing in the Ruby console opened! (tested in 2017)
Ruby Console works in 2016 but always no result :File linked (with no first segment selected)