Comment Blocks not working in Behaviour trees

UE4 v4.7.2-2467323

Repro Steps

  1. Select multiple nodes in a BT - doesn’t seem to matter what they are
  2. Right click one item in selection and choose ‘Create comment from selection’ -or- Press “C”

Expected: Comment block appears like in BP editor

Actual: Nothing happens

Note the I can right click individual nodes and add a Node comment that appears in a bubble.

I’ll file it as a feature request. Just a side note: it’s not that trivial - BT editor is only loosely related to BP editor.