Needed improvements to the Usages view (from IntelliJ)

Hi again,
Another ask for behaviors that existed in AppCode/IntelliJ since forever and are missing in Fleet, this time for the “Usages” popup.

1. Lay out the usages *flat*, without the dedicated header rows for file names. In IntelliJ, while the usages are sorted by file, they are laid out flat with the file name displayed alongside them. This allows navigating the usages quickly without having to “skip” over the (useless) file-name rows. It also saves a lot of precious screen space when viewing many usages across different files. Honestly I can't think of a single reason the current Fleet UI would be considered better (and it's more complex…).
2. Highlight the “current” usage. That's what IntelliJ does, and it's great for orientation when navigating a large amount of usages. Also, the popup comes with a pre-selected relevant usage to view (that isn't the current one).
3. Allow hiding the file preview. It's distracting, makes everything sluggish, and is just not useful (to me).

Usages in IntelliJ-ides (flat & nice):

Usages in Fleet (unnecessarily hierarchical & verbose):

Thanks!