You can control how much historical data is loaded into a chart. By default, the last 510 records are shown. This means for example that in daily charts the last 510 days are plotted, in tick by tick charts the last 510 ticks. If you want to extend the historical data, you have to change the time region for the chart.

When using intraday charts, you can also define trading sessions to choose when the trading session of the exchange starts. The default settings (based on the trading hours of the exchanges) are automatically loaded from the Market Data Server. You can also define more than one trading session, and assign different colors to them.

If you want to show less data on a chart, you can either cut the data history with the Data Cut tool, or hide specific data points (bars, candles etc.) on the chart in the data table view.

▪       Click on the arrow next to the Time Region icon on the Chart toolbar:

▪       Choose the time region that you want to use (default: 510 records).

▪       If you want to use a custom time region, choose Custom. The Chart Properties dialog is shown.

▪       On the left side of the dialog, select General > Time Region.

▪       On the right side of the dialog, choose the appropriate setting:

All	All available historical data of the symbol is loaded and displayed in the chart.
Last x …	All historical data for the last x minutes, hours, days, weeks, months or years is displayed. Enter the number and choose which period (minutes, days etc.) you want to use.
Records	The last x records (data points, bars, candles etc.) are displayed. Enter the number of records. The default setting is 510 records.
Period (from-to)	The historical data for a specific time period is loaded and displayed in the chart. Choose the begin and end date and time of the period. Check the Begin box to load all available data from the beginning of the time series up to the point in time that is set in the to field. Check the Now box to load all available data from the point in time that is set in the from field up to the most current record. The Begin and Now settings are dynamic and are updated constantly.

All data for a symbol that does not fit into one of the trading sessions defined here is not displayed in the chart. Trading sessions are especially useful in intraday charts.

▪       Right-click on the chart and select Properties.

▪       On the left side of the dialog, select the name of the chart pane, the name of the symbol and then Trading Sessions. For example: Pane 1 > EURUSD > Trading Sessions.

▪       On the right side of the dialog, select the Use custom settings box.

▪       You can now define up to four different trading sessions. Each trading session has the following properties:

Start	Start time of the trading session
End	End time of the trading session
Days of the Week	Days of the week that the trading session applies to: Sunday through Saturday
Color	Color used in trading session coloring (see Color-Coding Price Relations, Intervals or Trends)

▪       Choose whether your custom settings should only apply to this chart (Apply trading session for this time series only), or if they should be used for all charts with this symbol (Apply trading session for this symbol in all documents).

▪       Click on the Data Cut icon in the Drawing toolbar:

▪       Click on the chart at the date / time that should be the beginning of the chart. All older data to the left of this point will be removed from the chart.

You can hide specific data points in the data table view, so that they will not be displayed on the chart. For details, see Displaying the Data Table View.