Simple Instructions:
You remove metadata the same way as you update it. First select a file from the
file tree, then use the metadata table to select the metadata. If the metadata
has a value assigned, the "Remove" button in the MetaEdit Controls becomes
active. Click it to remove the metadata from the specified file. Other files
remain unchanged, and the value remains in the Value Tree.
When you remove metadata from a folder, or from several files, you are
presented with various options: removing the metadata from this file, removing
it from this and all other files, and skipping this file. You can cancel the
operation at any time. If you choose metadata that is not common to all the
selected files and click "Remove", the metadata is removed from those
files that have it; all others are unaffected.