The Greenhopper cards show how many days the card has been in its current column. I would like to create a filter that show all issues that have been in a column for more than 5 days. It seems this would be possible since the cards show the data I would need to calculate on.
The business reason behind this is to create a focused list for a weekly management meeting to review "exception" issues that might need some management attention. This would be easier than hovering over every card in a complex board with a large number of cards.