+1
This is the feature I’ve been waiting for the most since the day Obsidian appeared!
It would improve so many features at once: side pane backlinks, in-file backlinks, file search, embedded queries.
Right now it looks, well, suboptimal, especially in bullet lists, since the indentation gets lost once the line gets wrapped:
And there are a lot of folks who use Obsidian as an outliner: the outliner plugin has more than a hundred thousand downloads right now!