This Support video shows some changes to the Linear Features in the Field Book.
Append points to a Dynamic Link Linear Features (Outlined in red).
Close a Dynamic Link Linear Feature (Outlines in black).
This video use the MicroStation Selection tool to edit Linear Feature, choose the Linear Feature outlined in red and outlined in black as shown in the snapshot.
Click the video below to play it. To view in fullscreen mode, first click the YouTube link at the bottom of the video to launch the video on the YouTube site. Then, click the fullscreen button (rightmost button at bottom of video).