It is in the TWS user manual under "Get Started" and "Cancel an Order". http://www.interactivebrokers.com/en/software/tws/twsguide.htm You should spend some time to read the user manual for any trading platform you intend to use.
ok. I'm blind.. I don't see any pricing information on that page.. can you please tell me whats' the price to cancel a GLOBEX order via IB please?
It appears to me that you need to read the title of the post to understand the OP's question before submitting a worthless post. IB has information about there commissions and how they handle cancelled orders. For the CME look under the futures tab. http://www.interactivebrokers.com/en/p.php?f=commission
AFAIK there are no explicit cancel fees on Globex. There are firm-wide cancel-to-fill ratios, however, so if your cancel-to-fill ratio get's high enough to trip IB's internal trigger, you will get a warning email from IB.
My apologies, I missed the word "much" in the question and thus answered the wrong question. Here is the information on CME messaging (orders, modifies and cancels) policy at IB's site: http://ibkb.interactivebrokers.com/node/189