With this feature...
Do this...
off 
small medium large
Select the size of DST icons to display on the map or whether to display them at all.
oil gas water mud
Select the DST properties to display in the icon.
show oil and gas as hydrocarbons
Select whether oil and gas should be colored the same and then click the hydrocarbon color to display a popup palette from which you can select the desired hydrocarbon display color.
Formation drop-down list
Select whether to display information for DSTs at all
levels, one formation, or a formation range.