The phase solids can be cut with up to date depletion surfaces, these can be applied to the top of a pit phase or the base of a dump. There is also the option to input a bounding elevation to reduce the number of blocks exported from the reserves to the scheduler, in the case of a short term schedule.
To apply depletion surfaces:
In the Depletion Surfaces panel press the blue plus icon and import required surfaces.
In the Phases panel apply the required depletion surface to each phase.
<CTRL>+ click to select single phases.
<Shift>+ click to select ranges.
Select the surfaces from the Upper Depletion / Lower Depletion dropdowns.
Use depleted surfaces, not the solids of pits and dumps.