how to raise or low an element elevation direct? do we have some tools?

I have used a tool in other software, click the tool, then select the element, then the tool let "  Amount to add to all elevations:", just give the number I want raise or lower , minus is lower

SETELEVATION
Select objects: 1 found
Select objects:
Amount to add to all elevations: 1

It sounds like you may have figured out a method of performing this operation in another software package but you might be interested in the methods that can be used in MicroStation to perform this type of operation.

https://communities.bentley.com/products/microstation/w/microstation__wiki/16120/how-to-move-elements-to-different-z-elevation

Also, it is always a good idea to provide details of the software and version you're currently using as this can make a difference to the answers provided to help with your issues.

https://communities.bentley.com/products/microstation/f/microstation-forum/87312/read-first-microstation-forum-best-practices

I also want to change the 3d smart line or line string elevation, can we direct select the smart line and change the elevation one by one like autocad? do somebody give me a quick way to change the elevation? thanks.

Thank you Andrew, I read the post before, It's only for the elements have the some elevation, but for the element have different elevations civiltool "set elevation" will change to same elevation, but for culvert, the two ends is different, I want to raise it 1m and keep the elevation different, not to flatten it. so I want to find another tools for it. thank you.

Hi,

xinmh said:

I also want to change the 3d smart line or line string elevation

it's not clear whether you want to change element elevation,which requires to change Z coordinates of all vertices (it's your original question), or the elevation of one vertex (it's seems to be your picture about).

There are several different ways hot to do both type of modifications in MicroStation (which is typical for MicroStation, where several different ways can be used often ;-)

The crucial tool (and mandatory knowledge to be able to use MicroStation efficiently) is AccuDraw, allowing to drag (using Element selection arrow) vertex or the whole element by defined relative delta in defined direction (e.b. Z axis):

Alternatively, for individual vertices or segments, you can edit their properties directly:

With regards,

  Jan