Some times in custom reports it would be useful to easily hand repeated XML Nodes
Many XML reports have repeated Nodes
As an example that is already covered as a native but shows a good example is Junit XML (but many other reports have similar structure)

In Junit you can multiple "testcase" nodes per "testsuite"
with each "testcase" having a "name" and "time"

So it would be useful to create a report that for example logically did:-
For each "testcase" report it's "name" and "time"

Or in more generic terms
For each Xpath to repeated Node
Report Xpath1 and Xpath2

At the moment you can specify each testcase by position
e.g.

//testcase[1]/@name
//testcase[1]/@time
//testcase[2]/@name
//testcase[2]/@time