The railway repair facility

[Draxon]

At the railway repair facility you are suppost to press a red button, when you point at the button the "label press" appears but no way to press it, should it be pressed by using the F key?

[GlowWorm]

I don't know the particular button you are referring to, but some buttons and such have a requirement that you do things like "turn on the power" beforehand.

[Baron01]

If you see prompt to "Press" followed by grey square icon, you first need to trigger another switch. This can mean starting a generator or flip a power switch elsewhere--I believe this is the case for the side quest in Railway repair facility. If I recall it correctly, the power switch is further down along the tracks. There should be burer inside.

[Deadaleus]

I didn't find it either. 3 switches, 1 big button but no generator.. :(

[ks_leon_]

I searched for 2 hours and then continued playing. You can only unlock it through a side mission
Side mission “The Side Hustle”
You will receive this side mission from Sergeant Yeremeyev in the northwest building of the Icarus complex, west of the Zaton region.
( written with Google Translate )

[Deadaleus]

ks_leon_ a écrit :

I searched for 2 hours and then continued playing. You can only unlock it through a side mission
Side mission “The Side Hustle”
You will receive this side mission from Sergeant Yeremeyev in the northwest building of the Icarus complex, west of the Zaton region.
( written with Google Translate )

Yeah I just figured out too. Couldn't opened it in my first playthrough, but now that I side with the Ward, it seems that this side unlock more zones.