Keyboard Navigation:

Change the Speed for Keyboard and Mouse:

Change the Speed for Keyboard Navigation:

Look around:

Pan:

Move camera forwards/backwards:

Other Navigation and View Options:

Function Key Settings:

Other Settings:

Sliders: 

Keyboard: TAB key 

Place button:

Place button -> Line Placement/Mass Placement:

Lumion 2023.3.0 and newer: Line Placement

You can add multiple Objects to the selection from the active Object Categories. You can create a pool and select up to 20 Objects per Placement Line.

Note: Imported models, Groups, Lights, Nature\Fine-detail trees, Nature\Fine-detail plants, Effects\Sounds, Effects\Decals, and Utilities are not available in Line Placement as those should be placed individually.

Line Options:

When you place a Line and add one or more Control Points:

you have the option of switching between a smooth (spline) curved line or a straight line:

Placement Options:

Enable/disable Conform to Ground to let the objects align to the curve or to the ground.

Control Points are no longer limited to being on the Terrain or an Imported Model, but can be moved up into the sky.

When using the Line PLacement tool for 3D People make sure to click on the Pla ce On Ground button so they align vertically and not to the slope of the terrain:

Other Keys:

Prior to Lumion 2023.3.0: Mass Placement:

Place button -> Cluster Placement:

Note: Imported models, Groups, Lights, Nature\Fine-detail trees, Nature\Fine-detail plants, Effects\Sounds, Effects\Decals, and Utilities are not available in Cluster Placement as those should be placed individually.  This also applies to Paint Placement.

Select button:

Move free button:

Select Object Icon to Move freely:

Using the Gizmo to Move up/down or Move horizontally on each (world) axis of the Object:

See also:

• Knowledge Base:  How do you use the (new) Gizmo tool?

Click on the red, blue or green arrows of the Gizmo to constrain the movement to an axis.

Click on the red, blue or green squares of the Gizmo to constrain the movement to a plane along two of the axis:

• on Blue plane XY Space -up and down, left and right.
• on Green plane XZ Space -back and forward, left and right.
• on Red plane: YZ Space -up and down, back and forward.

Copy an Object:

Place, Move free, Move up and Move horizontal:

Rotate button:

The Gizmo Tool provides for rotation in each axis.

Switch to Rotate Mode using the R key.

Change the heading of the selected Object Icon(s).

Scale button:

Selecting a model when multiple Object Selection icons are aligned:

Multiple objects can be aligned or positioned at the same location. To select the model you want, you can either click on the model you want to select or you can use this method:

1. Place the mouse over the Object Selection Icons.
2. Use the W and S or Arrow Up and Arrow Down keys to cycle through the models.
3. As you scroll through, each model will be highlighted in green.
4. Click on the current Object Selection Icon to select it.

Auto-Snap Tool:

Instantly align/snap your objects to a face of one of the Objects in your Project, while placing or moving it.

Snap (was F + Rotate selected object(s) + Move ) now uses this specialized tool. 

In Place Mode, the Auto-Snap Tool is always visible. And in Select Mode, it only becomes visible when a certain ('smart') object is selected.

Auto Snap - Objects Category: Models from the Objects Category will snap and align to the surface of an Imported Model. Some object types like chairs will by default stay on the ground and align to the vertical surface. Objects like canvasses, posters, pictures, and paintings will snap and align to a vertical surface. But can also be moved vertically.
Auto Snap - People and Animals Category: Seated characters from the Object Library will snap and align to chairs for quick, easy placement.

Photo Matching Effect:

Orthographic View Effect: Align camera with surface

Mass Move Effect: