You can turn the display on and off for thematic layers the same way you can for other map layers. All the display settings in the Explorer window are also applicable to thematic layers, so you can set a zoom level for each thematic layer. You can also access the Modify Thematic Map dialog box by double-clicking a Thematic layer.
Thematic layers are always drawn after their base layer. Therefore, they appear above their base layer in the Explorer window, and are indented to distinguish them from other map layers. Thematic layers display in the Explorer window with this naming convention:
<Thematic type> with/by <variable-list>
The type of thematic map is noted first, followed by the list of variables used to create the map. For example, a pie thematic layer that uses commuting data is listed this way:
Pies with ComAlone, ComCarpool...
The variable list is truncated if there is not enough room to display each variable used in your thematic analysis.