the current version's zend studio support only one kind font for the source code, at the same time. such as "alias" or "verdana", I expect it can support more than one kind font, e.g.
I can set the source code's font to "font A","font B","font C",
if the font A can't display the source' s characters, then try "font B", then "font C",
this idea is good for Chinese, Janpanese or Korean , because it can make the source looks more nice.