Hi,
The event tab is already shown on the course page if the event is available, refer:
http://prntscr.com/im72jq
Please let me know if I misunderstand your question and share a screenshot of it.
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Sorry this is not available, the course status page has a different template and the course menu is not shown there.
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I can provide you a simple css to hide the unit time, please let me know from where you want to remove it, from course status page or course curriculum ?
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You can set the course evaluation mode from the course settings, refer:
http://prntscr.com/im74a4
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You can simply edit the course from the wp-admin and then disable the comments from the course. This will remove the course reviews.
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Please make sure the edit course page is connected in the wplms->course manager->connect edit course page, refer:
http://prntscr.com/im76k1
Also make sure this edit course page has the template create content.