Is there a way to save the GRBL profile from the Interface? I see in the menu load and edit the GRBL profile. I have edited the profile and would like to save it but I can't see how.
Its saved automatically, and that gets saved to the EEPROM on the BlackBox's microcontroller (Grbl does that - learn more here Home · gnea/grbl Wiki) If you want a backup for safekeeping - use CONTROL > Grbl Settings tab > Backup Grbl Settings button on the top toolbar
I don't have a computer that I can connect. That is why I use Interface. Is there no way to save it to the flash drive using Interface?
No there is not. You can write down the parameters as a makeshift backup in case you do overwrite them at some point with incorrect values
Is there some technical reason why this can't happen or is not so easy to do? I mean if one offers an edit function it would kind of make sense to have a save, too.