How do I setup WD to show Davis VP2 Soil/Leaf sensor temp as extra temp for WDL

Hi newbie question,
I have a Davis VP2 and Soil/Leaf Station.
What I want to do is show the soil temperature from the Soil/Leaf Station on WDL.
I have searched the forum, but have not found what the answer.

I would like to know how to setup WD so that the Davis VP2 Soil/Leaf sensor temp is output as extra temp 1 (instExtra1) for the input of WDL.