In the first post is a link to the full admin options:
http://www.qapla.com/mods/ss/msotng_admincp_free.jpg
Basically it is enabled by default on ALL pages. You can specify THIS_SCRIPT values to disable on specific pages.
If you ONLY wanted it on the CMS it would probably be easier to follow the instructions for the manual template edit and simply put the code inside a template conditional- such as:
Code:
<vb:if condition="THIS_SCRIPT=='vbcms'">
{vb:raw more_share_tng}
</vb:if>
So it only appears on the CMS and you don't have to enter 20 different THIS_SCRIPT values to literally disable them on every other page.