But... in at the very least two circumstances this feature is useful: backfilling more bars just after configurations improve (after you enlarge 'range of bars to load' in File->Database Options dialog It's important to pressure backfill for symbols that were backfilled previously with smaller number of bars) Selecting the best https://jaidenaeeee.thekatyblog.com/33803760/the-basic-principles-of-amibroker-data-feed