But... in at the very least two cases this feature is helpful: backfilling a lot more bars just after settings adjust (after you enlarge 'number of bars to load' in File->Database Options dialog It's important to drive backfill for symbols that were backfilled Formerly with more compact amount of bars) https://amibrokerdatafeed11975.dgbloggers.com/35635623/helping-the-others-realize-the-advantages-of-amibroker-data-feed