i'm a new user working through the intro wizard.  works great until i
get to the instruction to add a rebuttal.  i'm told "select an
objection in the buiding panel and drag and drop it under the
objection."  AH!  i see how it's done.  here's what i suggest for
helping people avoid the mistake i made.  add another sentence after:
"In Rationale rebuttals are objection boxes that turn orange when they
are placed underneath a ree objection box."

the new sentence might read:  "Do not look for a rebuttal box in the
Building Panel.  Choose an Objection box.  It will turn into a
Rebuttal box when you place it on your workspace."