I have seen this youtuber propagating honeyberry by simply mounding up dirt around the bottom quarter or so of the bush stems… which causes them to root into that dirt… then when dormant he digs some out with roots to establish in another location. He has mass multiplied them that way.
Above is one of his vids on propigation… not sure if that one covers honeyberry… but it might. If not surf the vids on his channel.
Good luck.
Yep… it is shown in that vid… he calls it stool mounding. Easily turn one honeyberry into many.