Log into your site admin area, then find “Plugins” at the left hand side of the screen, and click “Add New”.
Click “Upload” to switch to upload mode.
Choose the plugin file you downloaded by clicking “Choose the file”, then click “Install now” button.
WordPress may ask you for FTP credentials like on the screenshot on the right. In this case you can enter the credentials according to your configuration, or add the next lines to wp-config.php file:
define( 'FS_METHOD', 'direct' ); define( 'FS_CHMOD_DIR', 0775 ); define( 'FS_CHMOD_FILE', 0775 );
Click “Activate the plugin” link to activate UberGrid.