Unzip 'avp-unicode-charkbd.zip' inside the '/wp-content/plugins/' directory or install via the built-in WordPress plugin installer.
Activate the plugin through the WordPress 'Plugins' admin page.
Go to the "Unicode Keyboard -> Settings" admin options page to activate the desired special character sets. All character sets except for the Common set are deactivated by default, and at least one set must be activated for use.
An admin widget entitled "Unicode Characters Keyboard" will now be present in the write post and write page forms. Click on the character set name to display the characters in the chosen set.
Click on on any character that you wish inserted into your post.
Requires: 2.7 or higher Compatible up to: 3.5.2 Last Updated: 2013-1-25 Downloads: 708