Thank you for explaining! Looking at the file differences with meld I suspected this is the way to go. 
I'm not quite sure what "donFinScale" (changed from "fitDon2Seg" to "segMerge") and "donPlace" (changed from "deform" to "refsStat") mean, so I will play around with it as with "segSize" (changed from "100%" to "75%") and segsMaxMerge (changed from "10" to "0"). With your excellently converted file I always have a reference that I can rely on.
I'm not quite sure what "donFinScale" (changed from "fitDon2Seg" to "segMerge") and "donPlace" (changed from "deform" to "refsStat") mean, so I will play around with it as with "segSize" (changed from "100%" to "75%") and segsMaxMerge (changed from "10" to "0"). With your excellently converted file I always have a reference that I can rely on.