In the spring, you will have to update the "Next Homeroom" field for students. Here's how you can do that easily.
In School view, go to the Student top tab. Click on the spreadsheet icon and pick the following field set:
"7 - Next Homeroom - Next School"
Click Options > Modify List:
Little blue pencils will appear in the headers of editable columns. Go to the pencil under the NextHomeroom field and click on it:
The column will become editable, and you can go down the column putting in the name of the student's next homeroom teacher. I recommend updating in batches and saving often.
To save the changes you made, you must click that green checkmark in the column header. To cancel/discard all changes, click the small red X next to the green check in the column header.
Either way, it will once more revert to the blue pencil.
To get rid of the blue pencils, click once more on Options > Modify List.
Result:
You can do this 'Modify List' method of updating a list with almost all columns.