This KB article explains how to find and use the index symbols for many global indexes.
Download the master list of indices from the website: https://bullsystems.com/indiceslistName.asp
Frequency of Updates
Dow Jones Ind Avg
NYSE Composite 11877.4
S&P 500 2460.6
French CAC 40
Singapore Straits Times
How to use these
Create a new price chart, and simply type in the relevant code as shown bolded from the list above, or any other from the master list. For example, the S&P500 index can be plotted using: US.^SPX
(the ^ character is referred to as the carat and is typically on the computer keyboard at <Shift>+6.
How does this work?
The price data for these securities resides on the BullCharts servers in Sydney, and so you will need an internet connection in order to view the price chart. There can be a delay of 10 to 30 seconds to download the data, depending on your internet connection speed at the time.