I am having trouble creating what I want. The easy one - add the Cost column in the option chain or montage page, like next to the bid ask. Next, I would like to get my net calls and net puts. So, if I am long 2 NVDA Nov calls and short 2 Dec calls the net calls would be 0 and figure the same for puts. I would like to figure this for each underlying and I don't really care where it is, in the positions area of the option chaing, in the watchlist, etc. If the previous is possible could you help guide me a bit? I have tried to create a custom function in the option chain but it doesn't seem to have cost, and I don't see how I could sum call and put totals. Thanks for any help!!!!!!!!!!!!!!!!!!!!