I got an answer from a guru here. Here is what he said:

"I am not a user of Power Geopak SS2, but from a MicroStation foundation

viewpoint, if the contours that have been traced are all at the same Z

level, for instance Z level 0. Then they can be moved one by one to their

respective Z level using AccuDraw. It helps if you are in an Isometric

oriented view. Just select the B Spline with the Move command, rotate the

AccuDraw compass by pressing the keyboard shortcut "F" for front view

rotation, Move the mouse vertically and then type in the Z value. This works

relative to the existing location. Otherwise, you may be able to find a copy

of the MDL application called ModZ.ma somewhere on Bentley's Select support

site. This allows you to select a single element, a selection set or fenced

set of elements and move them to a specific Z location.

Labeling points can be accomplished with the Place Text command and

AccuSnap. Set your Justification to Top Left and locate the text using

"Near" snap. If you want the text to be placed relative to the point on the

element, press "O" to set the point as your Origin point."

I hope this proves helpful for you.