The Split Grid tool is used to split a grid domain into two sub-grid domains and may be selected with an RMC as shown in Figure 1.
Split Grid allows the user to create a polygon on an existing grid with LMC as shown in Figure 2. Closing the polygon with a RMC will generate a new grid inside the polygon as shown in Figure 3. The new grid layer will be created automatically on the Layer Control based on the existing grid layer.
Figure 16 Split grid option.
Figure 2 Split grid option: a polygon created
Figure 3 Split grid option: two sub-grid domains generated