Refresh for historical data

Ensign Windows has a refresh of historical data for the IB feed as follows:

Exchange Tick Intra-day Daily Weekly Monthly
U.S. Stocks & Indices
Y
Y
Y
Y
Y
U.S. Futures
Y
Y
Y
Y
Y
Mutual Funds
N
N
Y
N
N
Canadian Stocks
Y
Y
Y
Y
Y
Canadian Futures
Y
Y
Y
Y
Y
LIFFE and IPE
Y
Y
Y
Y
Y
EuroNext and EUREX
Y
Y
Y
Y
Y
Singapore SGX
Y
Y
Y
Y
Y
FOREX
N
once/wk
Y
N
N
Worldwide Stocks
N
N
Y
Y
Y
Worldwide Indexes
N
N
Y
Y
Y

Tick and intra-day chart data is current to the exchange's delay requirement.
The Daily bar for today for some exchanges may not be available until after the market closes

For your 50-range chart for ES, the chart is built from ticks you collect form IB, and can be refreshed in Ensign to fill in missing data.
The refresh for ticks is restricted to 100,000 ticks for the symbol or all ticks for today, which ever is greater. This data is added to the chart you have underway, so the chart over time can grow to have up to 65,534 bars maximum, which might be several weeks of data.

The intra-day refresh of minute charts will extend back 120 calendar days maximum. Daily refresh can extend back a decade.