Hi,
are you referring to this example: ?
http://krpano.com/examples/108b9/example…agegallery.html
there the background bar (thumbbar) and the images (thumbbar_image_#) are separated elements,
so to hide it - all elements must be hidden,
about using a other thumbbar for each pano - that should be no problem, by default the
"keep" attribute is not set of any element there, so when you load a new pano (with the MERGE flag),
the thumbbar should be removed automatically,
best regards,
Klaus