Hi
I've tried this:
Insert /parent=/my:myFields /child=my:Group1 /count=10
which creates 10 rows of my main group1
Then this
Insert /parent=/my:myFields/my:Group1[1] /child=my:Group2 /count=2
which creates two under my first main group1
Insert /parent=/my:myFields/my:Group1[2] /child=my:Group2 /count=2
which creates two under my ...