Objective
In CLO, the mouse wheel and the right button can be used to zoom in, zoom out, and rotate the screen.
The Maya and 3Ds Max view control methods are also supported alongside the default view control method and interface can be modified as needed and use differently.
Operation
Move 
Hold down the mouse wheel and drag to move the screen.
If you are using Mac's Magic Mouse, please hold down the Alt key on the keyboard and click-and-drag the left mouse key.
Zoom In/Out 
Scroll down (zoom in) and up (zoom out) the mouse wheel to zoom in and zoom out the screen.
Or, hold down Alt Key on the keyboard and the left button of the mouse simultaneously and drag up (zoom out) or down (zoom in).
※ Note: Zoom in or zoom out using the + (zoom in) and - (zoom out) keys on the keyboard (ver2.4.0.)
Rotate 
Hold down the right button of the mouse and drag to rotate the 3D window.
Comments
@susan, have you configured your mouse setting? If so, please try reset the setting and try again!
It should work!
do you know 3dconnexion mouse? it's quite common in all softwares where a 3d movement is required
Hello, I have Imac and apple magic mouse and I cannot rotate because I don't have right side mouse button, same problem with view control menu - I can't open it. I tried to use only mouse and mouse in combination with various buttons, but all is useless. I have clo5 trial version, how can I deal with this problem?
Hello, I'm using a Wacom Tablet and I'm having trouble finding the "move function".
Click+Option= Zoom
Click+Control=Rotate 3D Window
Scroll/Move seems to be evading me. Thanks for any help you can give me.
Hi,
How can I zoom with Wacom pen?