Add-on I need an add-on for meta tags...

[DRaver]

I need an add-on for meta tags and that it will endow each existing threads with a meta tag as follows:
<META NAME="ROBOTS" CONTENT="NOINDEX, FOLLOW">

All threads which may be written after the action should not have the meta tag.

Can someone write it for me?

 

[Chris D]

Existing threads only? Or all threads? You said existing but I just want to be sure.

 

[DRaver]

Sorry, English is not my native language.

I mean all threads that in the forum at this time. But all threads which may be written after the action should not have the meta tag.