If you have use cases, let’s talk, then we can see if it makes sense to support them.
Coming from Logseq, I love writing my notes in the journal pages and then viewing summaries on (meta) pages. Currently, I do this by tagging headings and then transcluding them, because there is no way to transclude just a (list) item and it’s children, I believe.
It’s a pretty simple use case that’s a) already supported and b) does not require appending attributes, but I wanted to contribute it nevertheless. 