EdwardBock

This plugin extends the grid plugin. You can hide containers and boxes from the toolbar.
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There’s a documentation at doc.the-grid.ws (english is coming soon)

Grid Element Trash

You can hide containers and boxes from the Grid toolbar.

mohamad wael

Kt-cleanpress is a plugin designed to clean and optimize WordPress. It will give you the following options:
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Clean Posts: which will let you remove all posts marked as Trash / Pending / Draft with all their related contents from the database, and then it will defragment it.
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Clean Pages: will do the same things described in Clean Posts, but it will process the pages.
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Clean Comments: will do the same things described in Clean Posts, but it will process the Spam / Unapproved / Trash Comments.
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Clean Post Revisions: Whenever a post is edited and saved WordPress automatically creates a backup to which one can revert. This option will remove all posts backups.
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Clean Auto Draft: This is a left over from the process of creating a new WordPress page or post and not saving it as a draft of publishing it.
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Clean Other Left Overs: Will remove navigation menus that are created but not saved, and all their related data, and will also remove unneeded lock and last entries in the database.
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Clean Empty Categories / Tags: Will delete all categories/Tags that do not have any post or link associated with them but will not remove the default WordPress categories.
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Optimize The Tables: Reclaim unused space and defragment the data file.
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</ol>

Grid Element Trash vs KT-CleanPress