Overview

This is the main environment where you work on your levels.

The active Viewport is present in all of the Editor Modes, one way or another.

In order to interact with the Viewport, make sure that this window is currently in focus. If it's in focus, the frame will have a thin yellow outline in this color.

To focus on the Active Window, you can either click anywhere in the window with any mouse button or hit the tilde ("~") key.

To maximize the active window to full screen, press Alt + Enter. To revert back to the regular screen size, press it again.

Edit modes

Left Mouse Button click (LMB) lets you interact with objects and the scene depending on the active cursor mode which can be changed on the Edit panel:

Object Manipulation

Tool	Description	Shortcut	Example
Select multiple objects in an area	Hold and drag to select objects in a rectangular frame.	LMB hold
Select multiple objects precisely	While holding the Ctrl key, LMB click on objects to select or deselect them.	Hold Ctrl + LMB click
Lock Selection Mode	Locks the currently selected object. Will not allow you to select other objects. You can check the bottom right of the screen to see, if Lock Selection is enabled.	Space
Zoom at Selected	Zooms camera in to the selected object.	Home
Cycle	Cycle through the selected objects, zooming the camera in to each of them with each key press.	Alt + PgUp and PgDn
Context Menu	Brings up the context menu.	Right Mouse Button click (RMB)
Camera navigation	Activates camera navigation.	Middle Mouse Button hold (MMB) or Shift key hold
Copy/Duplicate	Copies the selected object(s).	Hold CTRL and Move / CTRL+C , CTRL+V
Delete	Will prompt you to delete the current selection. Will also show its dependencies (e.g. "this object is referenced in a VS script").	Delete

Navigation modes

Game camera style

Standard navigation for the Level mode. This is active by default when the editor first loads.

• This Alternate Movement does NOT take into account the camera movement speed that you set up with the Mouse Wheel. It only depends on your actual mouse movement pattern when holding Shift or MMB + LMB or RMB.

  Since you always have both regular and alternate camera movement control schemes at your disposal, it can be helpful to have your camera movement speed set to low or medium (with the MouseWheel). Then, whenever you need to travel fast and far away, use Shift + LMB + mouse movement. When you need to study something small or detailed, you can use Shift + WASD keys.

  
  

  A quick way to see things from the perspective of the player is to press Caps Lock. You can also drop the camera to the ground level by holding SHIFT or MMB while pressing Caps Lock. You can then walk around using WASD keys. This is useful for evaluating the scale and the level's layout from the player's perspective. This function works as a toggle, so you can simply hit Caps Lock again to turn this mode off.

Arcball camera style

This is a special navigation style designed so that you can rotate the camera around the current mouse cursor position. You can temporarily activate this feature by holding Alt + MMB + mouse movement.

Alternatively, you can press the "Arcball camera style" icon on the panel (as pictured above).

The Mouse Wheel Up zooms the camera in, the Mouse Wheel Down zooms the camera out.

Status Bar

This is the bottom bar that shows some helpful information.

Option\icon	Description
Nothing Selected	This is shown when nothing is selected. Shortcut: Ctrl+D to select nothing. Otherwise, this will show the name of the selected object or the number of objects selected in total.
V:0	Polycount of the selected object. Mouse-over this for additional information.  This information is also visible in the Selection Info window.
Grid: 1.00 m	Current size of the grid sections.
Snap: 0.10 m	The current snap setting.
Isolate	Hide all Editor-only helpers of non-selected objects. This is similar to pressing Ctrl + E, except you're hiding every object that isn't selected. This is useful for complicated scenes. Shortcut: CTRL + Space.
Lock Selection	Locks your current selection so that you cannot accidentally deselect it. This is useful when working with complicated scenes. Shortcut: Space. Note the YELLOW OUTLINE that surrounds the selected objects when Lock Selection is ON.
Absolute ( "ON" by default)	Display the XYZ coordinates on the right side of the Status Bar in absolute numbers. If "OFF", the numbers will be displayed in relative numbers.