Is it possible to change the engraving speed when the code execution has already been activated? Is the only way out is to stop everything and start again?
What controller are you using?
Eleksmana SE with GRBL 1.1F
The GRBL controller supports it, but LightBurn doesn’t yet. There are some GCode senders that will do this already, and I’ll likely add support for it before too long.
It would be a very good function. I hope he will appear soon.