Hello,
Happy to help with your query,
Unfortunately there is no option to drag & drop between calendars or move events that you aren’t the host for in Outlook new and web.
However there is a method using Classic Outlook, you will need to revert to the Classic Outlook App.
Click the toggle next to the “New Outlook” text to revert to Classic.
Afterwards go to your calendar which will be on the left side of your screen but with different Classic icons. After opening calendar click “View” then “Change View” then “List”, this will show your calendar events as a list instead of a calendar, you can filter them down to your school job invites by using the “Arrange By” function on the top bar, then highlight all of them by either clicking them individually or pressing CTRL+A if you have them filtered down, now right click and select “Move” under move select the option “Other Folder” , this will open a new window where your email files are broken down to into folders, find “Calendar” and then within calendar highlight your school job calendar then click “OK”. This will move the selected events from your personal calendar to your school job calendar, this will happen instantly on Classic Outlook but for Web and New give it a few minutes to catch up to classic.
Your meetings should be moved from your personal calendar to the school job calendar now.
Hope this helps,
Juan