A nice feature for stacks would be a "copy tags from" feature. I often end up having to copy tags "by hand" when creating stacks with existing files that I do not want to be the top. If I could right-click and selected "copy tags in stack" (or something) and select which member I would like to duplicate to the others, that would be a great time saver...
Or can I do this ea silly already and I'm missing something?