[Gimp-user] set mode or opacity for multiple layers at once?

[rutile gmail com]

Is it possible to set the blending mode or the opacity settings for multiple layers all at once?  Ideally I'd like to select multiple layers and change the settings for all of them at once, but I can't seem to figure out a way to do this, so I think it doesn't exist?

Is this something other people would like to be able to do?