Switching between D20 and D12 in all roll buttons of a sheet

Hi ! I am customizing a character sheet for a friend of mine. For his game, when a character has a critical injury (easy to add to the sheet via a checkbox), all rolls are switched from a D20 to a D12. I think I could easily listen to the trigger thanks to sheetworkers to do so (on change <checkbox_value>) but I don't know if/how change html code to switch all D20 occurences to D12. This way, a player checking this checkbox would roll any test using a D12 instead of a D20. Don't know if it is possible. Regards ! :)

You'll want to set a variable named something like "dice_size" in sheetworkers. By default set it to "d20". Listen for the checkbox to be checked or unchecked and set it to "d12" or "d20" as appropriate. Then in your macros replace all d20 with @{dice_size}

Well. Pretty smart and easy solution. Shame on me to not have found something soooo simple... Worked like a charm ! Thx a lot :)