Our campus just switched from BlackBoard to Canvas. One of the features we utilized in BB was the ability to create a calculated column using both assignments and *another* calculated column. We did this to document any necessary grade adjustments without compromising the original scores. E.g. The "written exam" column would be calculated to include scores from Exams 1-4; the "adjusted written exam" column would be calculated to include the "written exam" column + "adjusted written exam points". Doing this gives us both data points for reference in future analyses.

Is there any workaround for doing this in Canvas? I know how to create assignment groups, but I can't find a way to use an assignment group in the calculation of a new column/assignment group without duplicating all the scores and, consequently, the overall points possible in the course.