With this feature...
Do this...
Data Group 
Data Field
Select the database and data field upon which to base the interpretation then click the Lookup button to select a specific data value.
User Tops Sys Tops User
else System Tops
Select whether tops displayed in logs are from the AccuMap database of vendor tops, your AccuMap database of user tops, or both.
Frm Set
Select the formation tops to use. AccuMap includes both system and user tops; Generic tops are those you've modified that vary from recognized short and long formation names.
grid independently specified polygons allow grid outside of specified polygons
Select whether to grid the area within polygons using only the influence of data within that polygon, or whether to grid the map outside of polygons ignoring the influence of data within that polygon.
Filter Options
Select whether to use only wells with logs, ignore deviated wells, and whether to substitute 0 for wells without values.
Clip values outside the following range
Type the range outside of which to ignore Z-values.
gridding radius
Type the radius within which to include data values in the calculation. The radius extends from the center point of each grid node and is used to limit the influence of far points.
Formation penetration filter
Select whether to include in the visioning operation all wells within your current screen extents (DB mode), within your entire project (Project mode), or only those that penetrate a specific formation.
attach well list Use well list
Click to browse to and select a well list from which to display wells, and then select Use well list to display only wells from this list.
post user Z post well Z font size
Select whether to display user and system Z-values and then type a point size at which to display posted values.
color fill show contours
Select whether to display color fills and contour steps based on Z-values.
Map Scale
Type a larger number to increase map density (zoom out)
or a smaller one to decrease it (zoom in).