Truncate output text in hierarchyViewer component

Hi,
I want to display the text with truncated to 30 characters only. I identified the outputText and added the truncateAt attribute and set it to 30. but it doesn't seem to work. Moreover the line - truncateAt="30" is underlined with orange squiggly lines indicating that there is some error and when I mouse over it , it says that this attribute is not supported when the component is inside of a hierarchyViewer component.
Any pointers how can I truncate the output text to 30 characters only?
Thanks,
Dhirendra

hi Vinod,
Thanks for the reply.
I have run it and it doesn't work. Use case is that we have a hierarchy viewer and I want to just truncate the long names of the Node Title.
Here is my local deploy link
http://rws65447fwks:7101/projectsManagement/faces/ResourceManagementDashboard
All I want to do is truncate the Node Title and limit it to lets say 30 characters. So "Resources with No Pool Membership" becomes "Resources with No Pool Mem..."
I tried to change in the jsff file and add the attribute called truncateAt and set it to 30, but as I said it says by underlying squiggly lines that the attribute is not supported.
Please let me know against what team should I file a bug? or it has to bean SR?
Thanks,
Dhirendra

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