Terrain Edit- Deleting of Triangles-Not an editable terrain

to edit terrain you need to have it in your active dgn file.

Also, if the terrain is ruled to some data (files, elements etc), you need to remove rules from the terrain to make it editable.

Hi Adam,

Can you please tell me how to remove the rules for making the terrain editable?.

Select the terrain, and from the popup toolbar, select the unlock icon (on the right hand side) - there is also an option to remove the rules. There is a v8i note on this here, but it still applies.

https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/14421/error-message-not-an-editable-terrain

Thanks Mark.

Its working.

We found that you need to Deactivate Surveying Processing Rules for the Field Book to make this work. Removing the rules as outlined above didn't work for us.