As I often re-read books, I like to store all my completion dates in a taglike column (e.g.
2021-03-13, 2022-04-21, 2023-04-17, 2024-05-29). I use this composite column to group them by month in the tag browser:
Code:
program:
new_dates = '';
for dates in '#datesread':
converted = format_date(dates, 'yyyy.MM (MMMM)');
new_dates = list_union(new_dates, converted, ',')
rof