is it possible from flexpendant or just by robot studio using Rapid code?
I don´t actually know for sure since i pretty much only use the FP for manually moving the robot,
but if I remember right you can have free text input on the FP
and there is always the option to quickly copy the module onto an usb stick and edit the file on any
texteditor such as Notepad++ or even the build in notepad in Windows
after that just overwrite the module in the controller and update the the running version