How can I Set initial conditions on mesh nodes using Dataexplorer

When I followed the exmple in Chapter 5 of the guide book “Computational Hydrology I:
Groundwater Flow Modelling”, I found that I can’t set initial conditions on mesh nodes using Dataexplorer, for I can’t find the buttom “DIRECT Conditions” after I have right-clicked the mesh file.the pic is my computer screen capture.
(Pardon for my poor English)

And this is the picture from the book.

The screenshot above shows that you use the DataExplorer version 6.3. As far as I remember the direct conditions functionality is only in the old version 6.0 of the DataExplorer. The book should contain a link to download the old version.