When attacking with two melee weapons (or throwing weapons), you AUTOMATICALLY Attack with both weapons while using only ONE attack . No Body modifier to the damage of the off-hand Attack, unless that modifier is negative. (This can be offset using the feat: [item:9A384ED0-4A57-6374-6A88-1A67495A62CB])If either weapon has the thrown property, you can throw the weapon, instead of making a melee Attack with it. You decide this by using the dropdown under the weapon Attack section the character sheet, and select, throw.