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First, choose whether you want the Selection Toggles to Always be displayed in the Inbox or only when you are in Selection Mode. Set your preference in the Email Settings.
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Selection Mode
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Settings: Enable “Selection Mode on a long touch” as shown below.
When Selection Mode is activated by a long touch, the Selection Toggles will be displayed in the left margin of the Inbox and the Toggle will be checked beside the email where the long touch took place. See below.
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In Email Settings (Inbox > Gear icon), you may configure your personal swipe menus.
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