I've just started an intial eval of your options trading capability, and before I'm even "off first base" so to speak I immediately notice an issue with your options chain window.  The system purely ask the user to specifiy number of strikes to be displayed, for which I'm ok up to this point, but then there is no capability to 'deslect' the strikes that are not of interest. If I'm considering setting up spread position it's optimal to be able to have the chain window only display the strikes that's of interest.

/ MT

Thank you for your suggestion.