The ability to have both hourly rates as well as flat rates would be great; not just one or the other. Our facilities are rented by the hour. However, if a group reaches a certain number of hours for the field in a season, they qualify for a flat seasonal rate. It is hard to adjust invoices now to meet the flat rate. We do not want to delete dates to keep a record of what fields were used when. But it would be nice to be able to adjust to one flat rate when needed.