But... in no less than two situations this option is useful: backfilling extra bars immediately after options change (after you enlarge 'amount of bars to load' in File->Database Options dialog you have to drive backfill for symbols that were backfilled previously with scaled-down variety of bars) The data feed is https://amibroker-data43197.tinyblogging.com/the-smart-trick-of-data-feed-for-amibroker-that-no-one-is-discussing-78825749