Include sub-paths in redirect?
When this is set to Yes, the sub-directory or filename under the source URL path will not be included in the redirect. For example, if you redirected /google to http://www.google.com and a browser accessed http://example.com/google/something , the destination URL would still be http://www.google.com.

If No was selected in this example, the destination would be http://www.google.com/something instead.

However, if Yes is chosen you can use the special code $1 in the destination URL. This will be replaced by the sub-path or filename that comes after the source URL path.