In the summaries there is the option to view last 30/60/90 days but not last 12 months. Quite often it's useful to run a report based on the last 12 months from today. This can be achieved manually by setting custom dates, but think it would be a useful addition.
Also, are the presets calculated each time the report is run? i.e. If we choose last 30 days and save the report. When we run it 6 months later, will it be the original 30 days or 30 days from the date of running the report?