Inline Tag Thing allows you to easily remove tags from posts, and add new tags to a post. It provides a text box and button which allows adding one or more tags (For multiple tags, enter a comma separated list), and existing tags have a – link which will remove a tag from a post.
To perform these manipulations, you need to have the permissions to edit the underlying post. If you don’t have edit permissions, the box will not display.
There are two advanced options. To change these options, you’ll need to set a couple of flags in the plugin file.
Changing $automagicEmbed to false will stop automagically including the inline tag adder at the end of your content, which allows you to use the ITT_ShowWidget() template tag to display the inline tag adder in a location of your choosing.
Changing $showExistingTags to true will add a dropdown list containing the tags which are currently in use which you can add by choosing a tag and clicking the + button.
Also, there’s a CSS class, itt_tagBox which you can use to override the display of the inline tag box.