Mouse Control

Complete reference for using the mouse in UnrealEd 2.0 UnrealEd Viewports. See also UnrealEd interface. These should all work the same in UnrealEd 3.0.

Camera movement

2D Viewport

mouse button	up/down	left/right
left	slow pan	slow pan
right	fast pan	fast pan
both	zoom	none

3D viewport

mouse button	up/down	left/right	Note
left	move forwards/backwards	pan	keeps the camera at a constant height
right	pan	pan
both	elevator move up/down	strafe/dolly	viewing angle does not affect elevator mode

Troubleshooting the 3D camera

If you ever find the 3D camera has been rotated too much and the view is confusing, do this to reset it:

Find the Camera actor. It shows in 2D views as an eye. The quick way to locate it is this:
1. Open Actor Search
2. double-clicking any object name
3. all viewpoint focus on that object.
  (The actual name depends on how your viewports are configured. By default it's (usually?) Camera2. Fascinating factoid: the Texture Browser has a Camera object. There's also a mysterious Camera4...
Select the Camera actor
Do Actor Context Menu → Reset → Reset Rotation
Move the Camera actor a little bit in a 2D viewport (otherwise, next time you work in the 3D view it will keep the orientation you're trying to get rid of)
Click in the 3D viewport. Everything is happy

Object Selection

Actors

Select

Left-click a single brush or actor icon to select it in any viewport. Note that other viewports don't update to reflect change in selection.

To select multiple actors hold CTRL and click actors to add to the current selection.

Drag-select

In an orthogonal viewport, it's possible to drag-select: hold CTRL + ALT (or just ALT-GR), click in empty space and drag the red selection rectangle around the things you want to select. Note that brushes are selected according to where their pivot is situated. This method forgets what was selected before – hold SHIFT down as well to add to what is currently selected. Note that you can only select brushes in the Front and Side view, whereas you can select brushes and Actors in the Top view.

3D brush select

You can select the brush that a surface belongs to by SHIFT + left-clicking the surface in the 3D viewport. Note that if you have deleted that brush but the surface is still there because geometry hasn't been rebuilt, UnrealEd will probably crash.

Surface selection

Left-click to select surfaces. CTRL+left-click to add to the current selection (or remove if already selected).

ALT-right-click on a surface to make the texture on that surface current in the Texture browser. ALT-left-click to apply the current texture to a surface.

See also Selecting Surfaces for further surface selection commands.

Object movement

In most modes you can move selected brushes and actors by dragging with a modifier key:

CTRL to move the selected objects instead of scrolling the view
SHIFT to move objects and scroll with them.

In 2D viewports, use click & drag with the left button and one of the above keys.
In 3D viewports, use the following with either key:

Left button, left & right: x-axis
Right button, left & right: y-axis
Both buttons, up & down: z-axis

Performing a movement action when nothing is selected will automatically select the red builder brush and start moving it.

Hold ALT and left-click and drag to move a brush's pivot point.

Adding Actors

Holding a specific key while left clicking will add the current selected actor from the Actor Classes browser. In 3D this will add the actor a short distance from the surface clicked on, in an orthogonal viewport the 3rd coordinate will be zero.

actor type	mouse button	key
light	left click	L
selected actor	left click	A

Miscellaneous

To measure distances, hold shift and drag with the middle mouse button.

below is old stuff that will need salvaging at some point.

Mode specifics

Needs major formatting...

camera tool

Mouse control
function	key	left	right	drag
camera	alt
camera pan		√

click

ALT:

right:

click + drag

plain

L: pan
R: fast pan
L+R: zoom (up|down)

shift

L: move+pan
R:rotate&pan ??
L+R: zoom (up|down)

ctrl

l: move
r:rotate (left/right)
l+r: zoom(up/down)

alt

l: move a brush's pivot
r: nothing
l+r: zoom

shift + ctrl

alt + ctrl

LMB: drag-select: click empty space in an ortho UnrealEd Viewport and drag to select multiple brushes and actors. Note that brushes are selected according to where their pivot is situated.

Sobiwan: I'm thinking of organizing the tables by function rather than mouse or key because a person asks 'how do I move the camera' as opposed to 'what does the left mouse button with alt and shift do'?