[PK]

GCA handles it correctly. While the Basic Set groups the various innate attacks together under a single heading, each one is a separate advantage. If you have a burning innate attack that does 2d damage, it should be listed on your sheet as "Burning Attack 2d [10]," not as "Innate Attack 2d [10] (Burning)" or any other variant.

It's the same reason you list skills like Broadsword and Flail separately on a character sheet, rather than using "Melee Weapon-14 (Broadsword)" -- despite those skills being grouped under the Melee Weapons header in the Basic Set.