I have created a calender in the dashboard for a date dimension which works fine, however it would be useful if I had a next day & Previous day action button so users can click forward or back based on the date shown in the calender.
I also use fast selection button for previous month or week. What I would do for previous day > button > action > select in field > field: date field > value: =Today()-1 (of course, if this doesn't work, check the date format and adjust the function accordingly)
In the caption tab I would put some help text, like "previous day". In the button I would only put "<" (or ">" for next day).
It took a little bit of fidling with in my own dashboard but I got it working eventually. The issue I found was that my date field had date & time, so it didn't like the format, but since I created a Date(Date) expression in the script it works great.