Hi Erin - Try this:group.0.name=Highest
Parentgroup.0.valueexpression=IF(ISBLANK({parent}.{parent}.{parent}.{name}),IF(ISBLANK({parent}.{parent}.{name}),{parent}.{name},{parent}.{parent}.{name}),{parent}.{parent}.{parent}.{name})group.0.valueformat=HTMLtextmode=true
If there are tasks with more than great-grandparent tasks, you will need
to add another if isblank statement onto this. Hope that helps!