Zoom settings

Hi Everyone

I've been using corel draw for years (ok not as in depth as some people) & have just bought X4 after using corel draw 12 for 5 years. It's seems ok but does any one know how to cahnge the default zoom settings. When zooming it doubles up each time 50% to 100% to 200% and so on. It there a way to change it so it zooms up in smaller'slower amounts when using the mouse wheel?