How to save files with Shift_JIS encoding?

Hi

We share source code with Japanese engineers who use Shift_JIS encoding.

Using CCS 5.4 I can open Shift_JIS files and correctly see the Japanese characters.  But if I edit such a file and click Save, CCS prompts me to save the file as UTF-8.  How can I retain Shift_JIS encoding after a save?

David