Explanation

If you find you need to adjust the size of a block in the Civil 3D Extension please follow the steps below:

Process

Select the strip in the drawing

Type "ungroup" and select "enter"

select the object you want to edit.

Right click and select block editor

Highlight the block

Type "Scale" and press "enter"

Select the base point

type the value you want to decrease by and press "enter"

Then from the ribbon, save the block and close the block editor.

If you then look at the drawing the block will be set to the size selected.