I often set due dates <5 days ahead of the current date. When it’s the end of the month, it can be frustrating that I can’t easily select the next couple of days, because they are on the “next month” view in the calendar.
Perhaps a simple fix is for spare space in the final row of the calendar to have next month’s days in it?
I like that.
Recently I try to use the inline commands for such kind of moving.
In your case typing :s 5 is unbeatable fast and you don’t have to fumble around with the calendar.