streamlined - inset_table or membership in edit_view

for some reason, i cannot get this to work..

this is the very last piece of this entire project that is needed for
completion, and it's totally stumping me..

what i have is a relationship in edit view that is showing up as
would like it to show up just like it does in list view, when edit is
selected..).. but i just can't seem to get anything but :select to
show up..

i see there is another post to this list, but it looks like it was
never resolved..

here is what my edit view looks like:

module CareerAdditions

end
Career.class_eval { include CareerAdditions }

Streamlined.ui_for(Career) do
  user_columns :title,
  :description,
  :schools, {:edit_view => [:filter_select]},
  :pathway,
  :youtube_link,
  :salary,
  :documents
end

the relationship between schools and careers is:

has_and_belongs_to_many

i have also tried changing "user_columns" to "edit_columns" with no
luck..

if anyone has any ideas, i would throw you massive karma points..

thanks in advance..