new security in MT4

 
Hallo

how can i make new security in mt4?
I want to analize future contract chart and S&P, nasdaq in mt window, but i dont know how to create ig S&P security.
All data i have are .prn files, so it should be easy do import date to new security.
 
You need to create own HST-file, then you will be able to open your security using 'File - Open Offline'.