This is a truly terrible program- it amazes me how over and over the grading and assignment functions manage to be completely counter-intuitive- all of your needs must be anticipated because the course you design and assignment types have no flexibility once you create them. The grade book is a nightmare. It has a spreadsheet in the making, but you can't add any columns, or add any of your own weights.
Example of my gripes: I created an essay test with the 'quiz' function- the students were informed to choose 2/3 essay questions to answer. However, it was setup in such a way that each question had to have a specific amount it was worth, and the total had to be the sum of all parts- i.e. it is impossible as far as I can tell to have an optional question. I thought "i have used several other platforms (blackboard etc.) and can just change it all through the gradebook". That was naive because other programs don't have a gradebook forged in the bowels of Hades, created to be as useless as possible. So the students take the test, they have a grade on a scale of 1-100 but the points say it is out of 150. At the end of the course, I try to create a weighted column thinking I could do, i dunno, a simple goddam operation like in excel or any other spreadsheet where I can just add the 2 tests in the category and divide by 200 points and that would result in a correct final grade. Instead, there is not way to create anything without going through their initial module/assignment category page. I can't do that now, however, because it would require me to delete the assignment and all of the students responses (!!!). Seriously incompetent design. Since there is no way to change the weight, I went through and manually added for 40 students the average of their grade from the 2 test so the average % would be the same. However, after finishing that complete waste of time, I found that there was no way to use %, it was only going to add raw points from test 1 & 2 and then weight them into a % for the final grade. Therefore, it was impossible to do what I wanted in even the somewhat easy way, the only way was to make the other test worth 150 so that they were worth equal amounts, and make sure the extra 50 had the same average. I am wasting so much of my own time because they have the least user-friendly and customizable gradebook I have ever encountered across several platforms. It is horrible. My options for the future are to just create an 'assignment' rather than a quiz so I have more flexibility, but rather than individual questions I will just have to put the assignments in 1 block for them to write the assignments in 1 block. No program should be so lacking in customizability that I should have to already be a canvas savant to not end my semester having a headache and spending way more time than was saved over the course, just fixing all the problems caused by their terrible program.
Just don't- really. It is not a good product- it is not very customizable, once you create a course one way it is difficult to make changes, there is no direct way to change the gradebook or create various types of adjustments, they require labor-intensive redesign, which you often can't do mid-way through the course because assignments are so lacking in customization, you would have to delete assignments and start from scratch, thus getting rid of existing grades and assignments because they are all linked. It is horrible. I am taking the time out of finals grading to light up some forums to punish this terrible company from making my life unnecessarily hard with their terrible product.
This is a truly awful program. I would rather use almost any other system- and would much rather use an excel spreadsheet for a gradebook than the incredibly inflexible and uncustomizable nonsense you have designed. Your work is an embarrassment, Canvas.