I also would prefer the exclusion-type interface, where all courses are initially selected, and I could de-select the very few courses I want to include in the GPA. But I'd welcome any version of the capability to efficiently exclude most courses from a GPA calculation.

Would be a wonderful capability for our clients as the schools with a Wide and Diverse Course list. having multiple Course selecting and bulk excluding can save an immeasurable amount of time. 

I would love to be able to select each course that should be excluded. This was how it was setup when I started with Blackbaud 3 years ago and it was very helpful. I would not forget courses to exclude because I could see the full list and select each one.

Alternatively, simply adding the ability to Select All within the exclusions interface might be an effective way to reduce the time required to create a GPA specific to a small number of courses. Staff at The Emery Weiner School would greatly appreciate such functionality be added to the configuration options.

While this ability would be useful, we have a lot of calculations, and also a lot of courses which should never be included in them. For us, it would be preferable to have one of the following:

1. The option to exclude from calculations in the Course > Grading settings.

2. The option to apply weighting in the Course > Grading settings, including a value of 0, which could be applied to Grades, and not just GPAs.