WP Alternative Slug allows you to choose posts, pages and custom post types to have secondary url..
Go to Plugins > WP Alternative Slug by 010Pixel. You will be able to see all the custom post types including Post..
If you do not want to user alternative slug then select keep 'Alternative Slug input empty...
Administrator can go to Plugins > WP Alternative Slug by 010Pixel menu and configure the plugin . or use the automatic install via backend of WordPress...
How to choose which Custom Post Types can have the alternative slug metabox..
Tick the custom post type for which you want to show alternative slug metabox and click Submit.
Enable Alternative Slug Metabox by following the method shown above and you will be able to list metabox when you create post..
Just enter the slug which you want to use as alternative slug for particular post and the post will have that alternative slug attached to it...
Set value for Alternative Slug metabox to empty and save the post...
Browse the code, check out SVN repository, or subscribe to the development log by RSS...
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