Date -> Month Year

I have a little example here:

The filter is by date, and the date format is month and year.
But when selecting the month, the dropdown shows a normal calendar. It would be nice if only the options according to the chosen dateformat could be listed. In my example, a simple list of months (let’s say it looks ahead perhaps 6 months or so).

The date value stored could be the complete date (but from the 1st day of that particular month).

Please see the doc linked above, then hopefully this request makes sense.

Thank you.