Move point in Z direction while LOCKING X,Y coordinates

There are two different methods that you may want to consider.

Method 1 – Use Accudraw to move the elements in a specified Z distance.
1. Select the elements to move.
2. Enter the point to move from.
3. Enter in Accudraw the Z distance that you want to move (leave X and Y blank.
4. Select a point to accept the move.
If you enter 50000 in the Z direction, something at a point of 10,10,10 will be moved to 10,10,50010. It will be moved 50000 in the positive Z direction.

Method 2 – Use the Key-in browser to move to a specified Z location
1. Select the elements to move.
2. Enter a point to move from.
3. In the key-in Browser, enter XY=#,#,50000. The pound symbol does not change the coordinate (X and Y) that it is entered for.
4. Press enter to accept the key-in.
 When using XY=#,#,50000 for the point to move to, something at a point of 10,10,10 will be moved to 10,10,50000. It does not move a distance of 50000 like in method 1, but it moves to the elevation of 50000.

The newest releases of MicroStation CONNECT now have a change elevation command to make changing elevations easier.

Do you know the Z coordinate or Z distance you are targeting?

You can use the following keyins as your second "data point" to define the movement

XY = #,#,Z
for absolute coordinate values The #,# part means "original X, original Y" and Z would be your Z value

DX = 0,0,Z
for relative movment. Move 0 distance X, 0 distance Y, and "Z" distance Z

I can't vouch for these in anything but the Top View...I don't work in 3D very often.

Rotating AccuDraw to the Front or Side orientation, and then 'indexing' to the vertical axis (Enter key) will only move elements vertically.