# 3D Navigation

The model's 3D view has many built in features that can be accessed as the program is running.

- Left-button click-dragging on the particle changes its position.
- Left-button click-dragging on an empty regions rotates the view.
- Left-button shift-click-dragging zooms in and out.
- Left-button control-click-dragging translates (pans) the view.
- Left-button alt-click-dragging displays a 3D cursor on the scene (if the panel is “Enabled”).

It the ‘x’, ‘y’ or ‘z’ key is pressed during a mouse action, the actions affects only this coordinate. Note also that these actions are are modified if the 3D view is projected onto a 2D plane.

Right-clicking within a 3D view displays a popup menu as shown below.