I’m not always the best at it but when requesting a feature it might help to describe your work flow, that way the developers can better understand how to implement the feature, or perhaps the feature is already there but it’s hard to understand given the feature identified in isolation of other tasks.
For example, I would not find this useful at all but that doesn’t mean it isn’t useful, it just means that this feature doesn’t fit into my workflow.
Questions I would have are: Does that mean you want nodes to also have the same format in the excerpts that is in the source document? Or do you literally mean “copy” from a source document to paste into some other application?
When copying text from web pages and PDF’s on the Mac (not from MarginNote) formatting is usually preserved (to varying extents). But I usually don’t want the formatting so I have to paste ‘unformatted’ or ‘paste and match style’ in my destination program.