Input method for Shan language

Hello! Shan community requested me to include an input method for Shan (shn) in UniversalLanguageSelector. They would like to use SIL Keyboard layout from Keyman. Could you please help this? As I am not familiar with key mapping, I didn't understand jquery.ime explanation from YouTube. For more information about the layout, you can contact @Saimawnkham:. Thank you.