Time series- 'Days Previously' should not be fixed, but calculated based on start date to show progress from start date

[Shaji Ramasuthan]

Chart dates tab

Period: Daily

Dates: Custom Dates

Days Previously: should not be fixed, but calculated based on start date, need this to be an increasing one with start date being configurable, so that after one week “Days Previously” should be calculated as 7 days and so on.