Convert current node into a note of the node right above

When importing a list from a plain text file or markdown file into Dynalist, notes become nodes, but they shouldn’t. The whole outline requires a makeup. Many nodes that were intended as notes have to be copied and pasted into the node’s right above note. It would be great to be able to do this conversion with a single shortcut keystroke. If the node above already has a note, then the one being converted should be appended to it.