Help with this macro

What do I put in here so that the crit to confirm roll and crit dmg rolls only appear when a crit threat is rolled? /w gm Power Attack -?{PA|0} &{template:pf_attack}{{name=FALCHION}} {{ATTK=[[d20cs>18 +6 -?{PA}]]}} {{DMG=[[2d4+4 +(3*?{PA})]]}} {{CONFIRM=[[d20cs>10 +6 -?{PA}]]}} {{CRIT DMG= + [[2d4+4 +(3*?{PA})]]}}

Roll template rolls are tied to the sheet. So you probably just need to use the specific calls that the sheet uses. So {{attack}} instead of {{ATTK}} and {{crit_confirm}} instead of {{CONFIRM}}, etc. You can find the others here :<a href="https://wiki.roll20.net/Pathfinder_Character_Sheet#Roll_Templates" rel="nofollow">https://wiki.roll20.net/Pathfinder_Character_Sheet#Roll_Templates</a>