Bill points out using two separate models to return the records you want. Have you looked at “Adopt Rows” action. This allows you to adopt the rows of one model on ObjectA into another model on ObjectA. It may work in this case. You could set up two models on the Task Object, then adopt the rows of one into the other or adopt the rows of both into a third model. Once all the rows have been adopted into a single model, you can display them all in a single table. I have never done this, but it is worth a look.
