How do you add calculation columns to a table Region by using the Footer?

I have a requirement to add some aggregate metrics at the bottom of my "tableRegion". The "TotalValue" property value for the table is not going to work for me since I the data I'm calculating is more complicated then doing a simple "sum".
My first try (simple test case) was to use "OATableFooterBean". However, when it tries to find the table bean, it comes back as "null":
if (empDetails != null) {
OATableFooterBean tblFooter =(OATableFooterBean) empDetails.getFooter();
if (tblFooter != null) {
tblFooter.setAttributeValue("EmployeeName", "Merit Inc Target/Budget");
I'm guessing it is due to not defining a "footer" region for my "table" region. When I click on the "Table" region, then due "New", I dot see "Region" listed as an option. So my question is how do I add a region "footer" to my "table" region? Once I have that, I'm sure it will solve the "null" exception I'm seeing for trying to get the table footer in the above code.
Thanks

Hi,
For this create a transient attribute in the VO.
Perform your required logic on this new transient attribute.
Now create a footer region and create a styledtext and assign this transient attribute.
Regards
Sridhar

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How do you add calculation columns to a table Region by using the Footer?

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