Entering **ROOT symbol into the Quotes window will insert the Calendar Spread symbols with a one contract difference between the legs of the spread (1:2, 2:3, 3:4, etc.). The Calendar Spread symbols inserted will be Rolling Spread Symbols, so this list will update automatically once the nearby contract is past expiration.
For example, **CL will insert Light Sweet Crude Oil (WTI) Calendar Spread symbols into the Quotes window.
For symbols with an Exchange extension, such as ICE Brent Crude, you would enter **BRN-ICE .
Results in:
You may also specify the range of Calendar Spread symbols to be inserted.
For example, **BRN-ICE 1-12 will insert the first 12 Calendar Spreads.
Results in: