Keyboard Key for in game added cameras

i have been away from TS12 for a long while and can't remember what key to push to open the cameras that are added in surveyor mode when building a new route. can someone please help?

Yep, it's the 3 key.
apologies for misinfo earlier.
cheers
Graeme

In Driver press 3

1 cab interior
2 tracking
3 trackside cameras
4 freeroam

In surveyor place camera from looking straight down, @ 10 m from the tracks ... Using the arrow KB keys, slam the camera down to the ground, zoo in all the way ... Tap the page down/up KB key to zoom out one click ... tap the up /down arrow key one click to raise the camera @ 10m high, looking slightly down ... hit any surveyor button to set and lock the camera into position

I think he may mean accessing, in Driver mode, the cameras that have been manually placed along the route. In which case it is the "3" key for "trackside" view.