Changing XML Code Bending in ACE Editor

Question

The current ACE editor code addition behavior is to collapse the XML from:

<TAG DATA=FOO DATA=BAR> <blah> </TAG> 

in: <tag ... </tag>

How can I get him to do something more in the following areas: <tag data=foo data=bar> ... </tag>

IE, I want the attributes of the start tag to expand. Is there an easy way to do this? What files should be edited?

Thanks!