OIM 11gr2ps3: Can the search user drop down list be custom?

OIM 11gr2ps3: Can the search user drop down list be custom?

As the title,I have two screenshoot to illustration the problem>

Picture-1: The page is the Advance-Search-User page,when click the "Add Fields",there was a dorpdown list displayed.can I remove some attributes or sort the attributes?

Picture-2: The page is the Role-Members page.

When click the Add user button,there was a search user pop-up window display,in the search user dropwodn list there are many attribute,can them be removed or sort?

Wish the replys.

Thanks very much.