You'll find four different ways to manage your posts - scheduled, published, calendar and approval queue. 

You can edit your posts by clicking in the "three dot" icon or, if you're in the calendar, by clicking on the post itself.
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​Scheduled - any posts that are set to be published in the future

Published - any posts that have already been shared on your selected social media channels

Calendar - you can see your content by a monthly, weekly or daily view

Approval queue - any posts that require approval before being posted or scheduled. You can edit these posts or comment on them to collaborate with your team 

You can always filter your posts by social profile, story or label by clicking the "filter" icon