Limits a post to a single category by changing the checkboxes into radio buttons. Simple.
More Plugins
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Disable WP All Updates Advance
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Cookie Law Bar
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Featured Video for WordPress – VideographyWP
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My Youtube Playlist
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Redirect 404 to parent
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Post Types Order
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xili Post in Post
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WP Easy Responsive Tabs
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Photo Gallery by 10Web – Mobile-Friendly Image Gallery
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Amber
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Public Post Preview
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Advanced Custom Fields: Validated Field
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Free Property Valuation (Lead Generator) / Kostenlose Immobilienbewertung
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bbP Members Only
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Comment Form Validation
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f(x) SSL
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Rel Nofollow Checkbox
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Categories Images
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Gravatar Signup Encouragement
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PAYMILL for WordPress