@BB8x wrote:
.... want to change evevation of some vertexes. I grab first, keying in value -.2 and vertex goes down for 0.2. ....
.... text, keying in -.89 and text's elevation goes down for -0.89
Are you talking about grip-editing, and by "grab" do you mean you pick on a grip [so that it turns red], whether that's a 3dPolyline vertex or a Text insertion point [or anything else]?
If so, when you pick on the grip it goes into Stretch mode. To change the elevation of whatever it is, you can type in a relative displacement, but it needs all three coordinates, in this case including 0's for X and Y and ending with the Z which will change the elevation. To lower a 3DPolyline vertex by 0.2 drawing units, select the Polyline so the grips are showing, grab a vertex grip, and type in
@0,0,-.2
No routine is necessary. One could be written if that's too much work. But you would need to start the command to use it, by typing its name in, or picking a Tool Palette button, or something. That may be as much work as typing in the @0,0, part in grip-editing, which doesn't require you to be in a command at all.
Kent Cooper, AIA