But... in at least two conditions this feature is beneficial: 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 lesser amount of bars) Choosing the right amibroker data feed https://alexisosuuu.elbloglibre.com/35172614/the-data-feed-for-amibroker-diaries