Batch "Mark as Having No Lyrics"?

[VX]

Thanks to Steven and boroda74 the requested feature was implemented with Additional Tagging and Reporting Tools plugin!
http://getmusicbee.com/forum/index.php?topic=3833.msg

To use it you should update the plugin and MB to latest versions available (both released today: 2013-05-05):
download the plugin using the link provided in the first post of the above mentioned topic.
For the latest MB patch available always use the link:
http://musicbee.niblseed.com/V2_1/MusicBee_Exe_Patched.zip

How to use:
In the 'Copy tag' command: now its possible to copy '<Null>' pseudo tag to 'Lyrics?' tag to mark track as having no lyrics. Copy '<+>' pseudo tag to clear this mark.

As for batch editing Lyricist tag, use 'Copy tag' command as well.

Thank you once again for implementing this feature !