If you ever decide to move your SAS library files to another location in your file space, simply execute the following SAS program (rather than trying to find the function in SAS Enterprise Guide or whatever SAS tool you are using):

libname [name of library] '[path to the library files]';

Note: the path needs to use ‘/’ instead of ‘\’ for the directory delimiter, so your path might look something like this:
F:/My SAS libraries/library-1/