Anyone familiar enough with IB SpreadTrader, to help me figure out how to use this thing? I'm trying to put in a strangle in June crude futures. 1. So, I type in 'CL' as underlying. 2. Futures Options Combo -> NYMEX (USD) 3. Select 'Strangle'. 4) Month '20100517' 5) I just pick call strike as 90. 6) select one of the strategies that pop up.. for example put at 80. 7) Click next. 8) Up pops a dialog: "Configure table variables [Month - 20100517, Call Strike - 90.0]" Put strike: column variable, row variable, or fixed value. No matter what I pick for put strike, I'm screwed. Doesn't work. "At least one selection should be row variable", or "column variable". How do I make this thing go?