It would be nice to be able to show multiple date columns in the Calendar Views. Currently you can show one date column and choose an end date column if you want to show an item spanning multiple days. However, we have a use case where we want to show multiple dates on the calendar for each row, preferrable as different colors.
This is basically like showing multiple series in a chart as separate colors, with a legend or something to label the series.
For the UI, it would make sense to add a second series within this pop-up:
Each separate series could either be a single date, or a start-end.