Those fields on the Settings tab only take integers, unfortunately. They don't parse any Attribute calls or [[math]] - your @{charisma_mod} syntax was fine, it just won't work in that particular place. Here's an example macro, with the charisma mod added, advantage check, and global ability checks added on: @{selected|wtype}&{template:simple}{{rname=INITIATIVE ROLL}}{{mod=@{selected|initiative_bonus}}}{{r1= [[?{With advantage?|Normal, 1d20 | Advantage, 2d20kh1 | Disadvantage, 2d20kl1} + @{selected|initiative_bonus}[INIT] +@{selected|charisma_mod} &{tracker} ]]}} {{normal=1}} @{Selected|charname_output} {{global=@{selected|global_skill_mod}}} The initiative roll is one of the things the sheet does pretty poorly (actually all non-skill ability checks) - there's no real support for any class rules, and sheetworkers will just overwrite any changes you try to make to the Attributes used. The best way to use an Initiative macro is to set it as a Token Action - that ensures that you can only run it when you have your token selected, so you don't send blank rolls that won't be picked up by the tracker.