You can find a new package called jwmkit at obcommunity repo which allow to configuration the JWM desktop by a GUI.
Source:
https://codeberg.org/JWMKit/JWM_Kit/
Wiki:
https://codeberg.org/JWMKit/JWM_Kit/wiki# support-files
Don't hesitate to share your configuration with the obarun community.
Have fun :)