How to Zoom in and out if you don't have a mousewheel?

[DR4296]

Greetings All!

I'm a long-time user of a Logitech Trackball mouse, which lacks a mouse wheel.
I'd like to zoom out just a bit on my toon, but I can't seem to find any information on key strokes that would allow me to do that?
Any thoughts?

[Waaghtastic]

Well, if there is no particular setting in the key mapping of ROR you could alternatively use a keymapping tool like Autohotkey to remap the mousewheel actions to any keybinding of your choice.