[oXygen-user] 11.2 XPath box in Find/Replace stuck?

Hi there, using oXygen 11.2, build 2010031611 on Mac OS X in text mode, I'm unable to activate the XPath constraint box in the Find/Replace dialogue (it seems to invariably stay grayed out). Is this a known bug, or am I overlooking something? Thanks, Markus P.S. (O/T): thanks much for all those quick-and-timely XProc updates! -- Markus Flatscher, Project Editor ROTUNDA, The University of Virginia Press PO Box 801079, Charlottesville, VA 22904-4318 USA Courier: 310 Old Ivy Way, Suite 302, Charlottesville VA 22903 Email: markus.flatscher@virginia.edu Web: http://rotunda.upress.virginia.edu/