PL Converter can help you the proble about Zawgyi and Unicode. You don't need to worry about that. You can convert both of Burmese and Shan Language within this App.
1. click paste button to paste your copy text
2. click unicode button to convert to unicode or click zawgyi button to convert to zawgyi
3. click copy button to copy your output text
4. click clear button to clean all text
Shan: Sai Tawng Pha