EDIT (ijgnd):
this is a feature request: add option to show vertical header (headings/row numbers/line numbers) as in spreadsheet software like this:

(this screenshot that should have been in this post)
original message:
Hello,
Is it possible to add a Row Number column in the browser so that one can look at the position of the note / card in the list? Or some placeholder where it can show how many are above and how many are below when a particular row is selected?
It can help me to
a. Revise notes sequentially and resume if I get interrupted.
b. Resume edits to cards after filtering.
This will help keep track of progress. How many were complete, how many are still pending, etc.
The row numbers should stay the same regardless of whatever sort order is selected.
Thank you.