Macro Help

I want to take the result of the below roll and have it removed from a selected target token's current HP but cant figure out how to get the macro to reference the result of the attack roll. &{template:default} {{name=Damage Roll}} {{Damage=[[?{Damage?|1d6}+@{selected|HTH_Dam}-(@{Target|Defense})]]}} How would I reference the result of a roll in a macro? (if I even can)

Unfortunately, macros can't change values. This is only possible with an API script (pro perk). Even then, you'll need a custom script (or maybe Powercards) in order to reuse the result of a roll in this manner.

Ah ok, thanks for the quick response.