Very basic plugin, lets you specify up to 5 custom meta tags with full substitutions.
I am not providing support for this; it was a quick write and test for user feedback. If there's any issues then please examine the code (only 30 lines of code!).
For future reference users please if wanting custom development to use what's available as examples to build new developer; let this plugin be yet another example to reference to.
Attachment plug_cbmeta.zip not found