Extend tiny world

Questions
1

i drew a part of the map from the map editor

i have attached vector with right direction into keys and camera (screencast)

looks like i have a limitation of size of the map
cause i wanted to draw map at right side

camera rotates into startin rotation position

how to extend map size

2

threejs camera walking reminds me half-life

3

found issues:
camera works within y < 900
forum has video limit upload 10 mb

how to extend into up

4

I found it
Same issue, different instance of project

Need to comment lookAt in camera