Aggregator Function for collections

HI, I have a custom task view that displays Planned Hours vs Actual with variance, these are all task and have Aggregator Function sum for totals. I added a column of optask collection that list issues attached to each task, works great, but I would like to present a total of issue hours for that task. Icing on the cake would be to add both task and issue hours and display as a total. listdelimiter= listmethod=nested(opTasks).lists name=Actual Issue Hours stretch=0 textmode=true type=iterate usewidths=true valueexpression=CONCAT( {actualWorkRequired}/60, ' Hours - (',{status},') - ',{name}) valueformat=HTML width=400 Please note I redacted some information on the screen shot to protect the innocent tia dean Dean Holmes - IO Integration IO Integration