You need to build some logic in Visual logic that turns the highlight on and off based on whatever field/variable DakStats updates when a base is occupied.
For example, this Visual Logic setup will turn Quad1 (which could be a highlight) on if the Datalinq Source is equal to 1 and off if it isn't. So if DakStats sets a variable for the base as 0 or 1 (empty and occupied) the Quad would turn on or off.
This is a simple example. You could make the logic change the color of the material on the quad, or have the logic run differently depending on how DakStats is providing you information about a base being occupied or not.
#XPression