ショートカット
https://support.google.com/mail/answer/6594?hl=en&authuser=1
Go to Inbox g + i
Go to Sent messages g + t
Previous conversation ↑
Next conversation ↓
Open conversation o or Enter
Back to threadlist u
Previous message in an open conversation p
Next message in an open conversation n
Select conversation x
Mark as read Shift + i
Mark as unread Shift + u
Compose c
Reply all a
Forward f
Send Ctrl + Enter
Open keyboard shortcut help ?
Filter
検索ボックスにこんな感じで入れて検索結果を確認。ボックス右の矢印からフィルター作成
to:(aaa@aaa.com OR bbb@bbb.com)