Convert it to ASCII G-code, make your changes, then flip it right back. Prusa are not the only ones to notice that the space inefficiency of the G-code file format is not ideal in all situations.

TMC-3D, the Technosoft multi-axis motion controller, is now adapted to execute G-code commands. G-codes are translated into TML commands through the G-code to TML converter from the EasyMotion Studio.