Instructs CMS to insert new libraries into the existing library search list immediately in front of the existing specified directory. The specified directory must be in the existing library search list. If you omit the directory specification, CMS automatically adds the libraries (in the order you specify) to the front of the list. You cannot specify both /AFTER and /BEFORE on the same command line. If neither /AFTER nor /BEFORE is specified, the CREATE LIBRARY command's library list supersedes any existing search list.