For task completion, Excavator is required. How to use excavator for an activity with 20 days duration 1. Do I need to use as material ?? ( Volume to excavate) if I will use as material then It will not show as over-allocated by assigning other activities. in a case of material, It will not show as over-allocated by assigning other activities. 2. or I need to use as Non-labour for calculating the time unit. 3. Do I need to define activity as a fixed unit or fixed unit/ time?4- How to specify the excavator on an hourly basis plus the volume to excavate? Thanks