You can add data to any grid by clicking on the orange row at the top of the grid or by using the [INSERT] key on your keyboard. When you add an item you may see that some of the values are already entered for you. These items have been set up as default values for the grid. In the example below it can be seen that the first Depth Top will default to zero, the Depth Base will default to the final depth of the location and the Type will default to 'CP' (because this is the Data Entry Profile for CP locations).
You can use the arrow keys or [TAB] and [SHIFT +TAB] to navigate the row and simply type into any of the cells to enter data in exactly the same way you would using the normal OpenGround Cloud grids. Once you have added all the data for a row, press return on your keyboard to save the data.