Cannot open Terminal in Developer mode on Lenovo Chromebook

Hi,

Prior to bother you I checked everything on web and cannot find the answer to my question.

Lenovo Chromebook MODEL: MAGNETON-LCKC Nov. 2023 production month).

Need to enable boot from USB key for Linux installation.

When in developer mode, Terminal is not comes up by pressing Ctrl Alt Right Arrow or F2/F3

Tried external keyboard. Same result.

Also, Ctrl Alt t not works when in developer mode. Up down arrows keys work and all other I guess

After checking tones of info I think it could be some other combination than Ctrl Alt Right Arrow.

As you can see on pic there is no —> key on a Function keys row. So used Refresh key instead.

No GO. And as mentioned external keyboard that generally works (checked Up Down keys) not helps.

What is the mystery with this model?

Hope somebody knows the tricky answer.

thanks.
Thank you