multiple images in an overlay before-string?

["Ken Manheimer" <ken.manheimer@gmail.com>]

hi, all.

i want to prefix lines in a region (the interior body lines of an
outline item) with multiple images (constituting the graphical "guide
lines" of the outline structure).  i want the images to not be part of
the saved text, so using the before-string overlay property seems like
the right thing.  it looks like i have to use multiple overlays, each
with a single image, because i don't see any way to put multiple
images in a single image specification.  is that so?

using multiple overlays at the same point is quite doable, but thought
i'd ask first, to try to reduce the number of separate entities to
manage.

thanks for any info, whether that's some alternative i missed or
confirmation that there is no better way...
--
ken manheimer
ken.manheimer@gmail.com
http://myriadicity.net