Good demo demo by shay by shay on how to use setCurrentRowWithKeyValue to synchronize the master and details of same table.
Example : Employee master table list and EmployeeDetail form to edit records.
However there are many ways to achieve the same usecase. You can use the clicktoEdit property on table row to edit records in place within in table and there is also a feature to show more for few columns in table tools.
But objective here is to see how and where and all we can make use of setCurrentRowWithKey and setCurrentRowWithKeyValue.
Here is the link about this explains how we can make use of this.
link

more to be added.