Our school year is 4 quarters long (students get a grade and report card each quarter), and 2 semesters total (each semester is 2 quarters, semester grade awarded at the end of 2nd and 4th quarters).
A handful of courses are 1 quarter in length, rotating to a different course every quarter so the semester grade would just be that quarter grade itself. For example, this is a report card from our old system; the first row is for a course that took place for 1 quarter/only the 3rd quarter (the second row is for a course that spanned the first two quarters).

We are nearing the end of Q2, but I'm just wondering what's the best way to go about populating semester grades for those single-term Q1 courses.
In faculty grading, I see Semester 1 populate under Calculate

Calculation for a 2-quarter course
Calculation for a 1-quarter courseBut since Q1 passed, I can't access the Calculate button for Quarter 1. I presume this is supposed to be done before Q1 closes? I didn't have foresight at the time to also have to calculate in Semester 1 grades for Q1-only courses; before on our old system Semester 1 would just pull from it, so as another solution I was looking at Manage Grades and seeing if I should just enter them there:

Out of those classes, only one is single-quarter and rotates--Middle School D(rama) rotating to Middle School M(usic), and the others span 2 quarters. What is confusing to me is that Semester 1 entry boxes appear under all of the other courses in Quarter 1 like English/Math/Science, which are multi-term. Should I just enter the Semester 1 Grade under 1st quarter for Middle School D for example and ignore the others?
As we close the semester I am sending out a notice for teachers to also hit Calculate for the Semester grades to be calculated--but I'm assuming in the future, teachers who teach the one quarter courses should also hit Calculate Semester 1 in their Q1 grading?
The only issue is I don't want to confuse teachers if the Semester 1 Calculate button will appear for all courses including those that are multi-term, and those should only be getting the Semester 1 grade after 2 quarters.
Hoping that all made sense--been awfully confused how to reconcile grading having mixed 1-quarter and 2-quarter courses; most of all want to make it an easier process for teachers. On our old system teachers only had to input Quarter grades, and the grading system pulled Semester grades automatically; averaging the semester grade if it was 2 quarters and 2 grades, or just taking the grade if it was 1 quarter-long.
Thank you for your help.