Highlight of "Find" is supported in ColumnSetContainer?

Hi,

Highlighting of "Find" works fine with the 5.5's chassisRackVSphere sample.But 5.1's chassisRackVSphere does not work it because ColumnSetContainer has defined in mxml.

Can you please confirm Highlight of "Find" is supported in ColumnSetContaine? If I use mxml?. If its supported please let me know how to implement.

Any help is appreciated.....thanks