Assuming All Active Cells

• The last item under the Action menu is the Advanced submenu, which contains the Assume All Active Cells command.
• For finite-difference models (MODFLOW-2000, MODFLOW-2000 GWT, MODFLOW-96, MOC3D, and MT3DMS), if all cells in the model grid are active, invoking this command can speed up calculations required for graphical rendering.
• However, if the model grid contains inactive cells, this command should not be invoked. Otherwise, inactive cells will be displayed as active.
• For the finite-element model SUTRA, all cells are active, so this command is disabled.