Part2 surfaces act like part surfaces, but can have different tolerances and offsets.
Once in surface selection mode (see Access above), there are several ways to pick surfaces:
See the NC-Lite Note in Picking Part Surfaces.
Pick surfaces one by one by picking with the mouse. Place the cursor
on the desired surface, and the cursor will have the following appearance:
. The cursor automatically picks surfaces "closest"
to you. To pick surfaces behind or underneath the surface indicated by
the cursor, do the following: hold the cursor in place on the closer surface
until the cursor changes from to 
. Keeping
the left mouse button pressed, move the cursor until the desired surface
is picked.
To pick a group of surfaces, drag a box with the mouse that includes the desired surfaces. The box does not have to entirely include the surfaces; any surface partially enclosed by the box will be chosen.
In addition, you can right-click to open the following surface selection popup menu:
All Displayed: Pick all the displayed entities.
By Criteria: Pick geometry by criteria.
Reset Criteria: Reset the criteria groups for the entity type.
Multi: Enable multiple entities to be picked.
Reset Selection: Cancel all picked surfaces and start picking them again.
Finish Selection: Ends the selection mode and closes the dialog.
Notes:
If you want to define a Part2 Surface Offset, open the Offset and Tolerance section of the Parameter Tables.
You can narrow your choices of available surfaces by opening the Selection Filter menu.
Part surfaces take precedence over part2 surfaces. In other words, if you define a surface as part and later define the same surface as part2, the surface will be considered a part surface.
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