ファイルの保存時にサーバーへ自動でアップロード機能をsass書き出し時にも行いたい

I prefer to debug my code at a local level, hence the maps are very useful. But because .map files are not required to run the application, I tend to not want to upload these to the remote server. That way, the public (others) will not be able to use the debugging feature.

If you feel that Dreamweaver should be able to upload the .map files automatically, then you can propose that by going to Help -> Submit Bug/Feature Request.