I want to show 'Remark' has data and Max 'TestTime' Time

[Sxbbb]

I have filed :

I want to show 'Remark' has data and Max   'TestTime' Time . just one information

In this "WorkOrder "must be show' COPPER' .

[Digvijay_Singh]

May be something like this - 

MaxString({<TestTime={"=$(=Max(TestTime))"},Remark={"*"}>}Remark)

[Sxbbb]

Invalid MAX(TestTime) Invalid