Use / Place / Select item or object

Cancel the current action

Exit from current menu / tool

Open Pause menu

Move camera forward

Mve camera backward

Move camera left

Move camera right

Camera moves when mouse cursor is moved to screen edges. This option can be changed in the Options menu

Rotate camera around a center point

Rotate camera left around a center point in the view

Rotate camera right around a center point in the view

Tilt camera up

Tilt camera down

Zoom in camera

Zoom out camera

Zoom in / out

Increase and decrease elevation / rotation of object

Change current manipulation mode

Pause / resume game speed

Cycle through the game speeds

Toggle the Move tool on / off

Toggle the Bulldoze tool on / off

Toggle the Grid Snapping on / off

Toggle the Alignment Guides on / off

Toggle the Angle/Elevation Snapping on / off

Toggle the Auto-Stacking on / off

Toggle the  Free Camera on / off

Toggle the HUD visibility on / off

Steam screenshot

When playing with a trackpad, holding Ctrl and drag finger to rotate the camera (simulates a mouse middle click)

Select a node / segment or place the already selected node

Cancel current node selection or segment selection

Increase / decrease node elevation (Manipulation Mode 1) or rotate clockwise / counter clockwise the node on the current axis (Manipulation Mode 2/3/4)

Change the Manipulation Mode to node elevation (Manipulation Mode 1)

Change the Manipulation Mode to node twist rotation (Manipulation Mode 2)

Change the Manipulation Mode to node pitch rotation (Manipulation Mode 3)

Change the Manipulation Mode to node yaw rotation (Manipulation Mode 4)

Delete the selected node or segment

Select the track

Select the frame

Select the supports

Change the Manipulation Mode to object rotation

Change the Manipulation Mode to object elevation

Rotate clockwise / counter clockwise the node on the current axis (Manipulation Mode 1) or increase / decrease node elevation (Manipulation Mode 1)

Increase / decrease the path elevation