The editing of model initial conditions through 2DH View is with the following steps:
1. Click on the pen icon 
of the Bottom Elevation layer.
Figure 1. RMC on cells with Boundaries layer selected.
2. Use Shift/Ctrl+ LMC to select the cells that initial conditions must be changed.
3. Navigate to the main tool-bar and click on the Grid Cell Tool.
Figure 2. Grid Cell Tool location in the toolbar.
4. Choose Edit Cell Properties, a new Properties form will appear in 2DH View that show parameters of the cells including initial conditions such as water depth, bottom elevation, bottom roughness and their values for the user to modify.
Figure 3. Modify initial conditions in Properties form.