https://support.google.com/edu/classroom/thread/332233244/sa-info-can-i-choose-my-seats-on-%F0%9D%90%92%F0%9D%90%A2%F0%9D%90%A7%F0%9D%90%A0%F0%9D%90%9A%F0%9D%90%A9%F0%9D%90%A8%F0%9D%90%AB%F0%9D%90%9E-%F0%9D%90%80%F0%9D%90%A2%F0%9D%90%AB%F0%9D%90%A5%F0%9D%90%A2%F0%9D%90%A7%F0%9D%90%9E%F0%9D%90%AC