Create a line or area using the Measuring tool.

Once the object is selected, an information panel appears to the right of the window called POINTS.

The panel lists all the points included in the line or area with their N, E, and elevation (M.Ö.H.) coordinates. You can hover over a point in the scene or in the information panel to see its position.

To edit a specific point via the panel, hover over a row and click on the pencil icon to enter editing mode.

Enter the desired values in the N, E, and elevation (M.Ö.H.) fields.

Confirm by clicking on the green checkmark icon.

If you want to flatten the line or area to the same elevation (M.Ö.H.) for all points, click on the icon resembling an "arrow".

Confirm that you want to flatten all points.