you may try importing the attributes through the relationship. To do so, follow these steps:
- Place the Detail Unit in your page, click the General tab of the Properties view, and associate it to the parent entity (task);
- now, click the Select icon of the Display Attributes property, and the Import button;
- navigate the relationship and choose the attribute of the child entity (task item) you want to show;
- by default you may have Count Distinct as the Aggregate criterion; click inside the field, and a list of choices will appear: choose the first (null, blank), not the red 'x';
- finally click the Ok button.
Add more attributes, if required.