But... in not less than two scenarios this feature is useful: backfilling more bars just after options modify (whenever you enlarge 'range of bars to load' in File->Database Options dialog You must force backfill for symbols which were backfilled Formerly with smaller range of bars) Selecting the best amibroker data https://alexisdghfe.smblogsites.com/35147088/the-smart-trick-of-data-feed-for-amibroker-that-no-one-is-discussing