3.5 Rogue Sneak Attack Macro

What I would like to do, is have the regular attack just ask "Is this a sneak attack?" the same way it asks if you are flanking, and then also auto scale the sneak attack and add it in if you select yes. It's for a first time player, and I am trying to get the macro to do as much of the work for her as I can. Is this even possible?

Hey there Jared, Here's how I do it for my own 5E characters: [[ceil(@{base_level}/2)]]D6 Is the line of code I use to scale the Sneak DMG dices to the Rogue levels of my characters. Assuming here Rogue is the first class of the character. If Rogue isn't the first class of the character, you'll have to substitute "base_level" with "multiclass1_lvl" if Rogue is the second class of the character. Then what I do is use the "Global Attack Modifier" section of the character's sheet to have Sneak DMG as a Toggle: Remember that if you want those DMG dices to be doubled on a crit, you'll have to enter the code in both the "Damage" and "Critical Damage", because Roll20 does NOT auto double those. Feel free to try it and et me know if it's good enough for what you had in mind ^.^ EDIT: Just saw the title, are you asking for 3.5E or 5E? If memory serves me well, the Sneak dices scale exactly the same in 3.5 as they do in 5E.