Hi CJ Coll,
I edited the feature so that the labels are not on top of each other anymore and the points are removed inside the profile view. You can find the edited linesplan feature attached to this reply. To toggle the visibilty of the orientation points from the group section curves, you can use the command .setShowOrientation(true/false). If you want to further edit the feature yourself, you can access the it in your CAESES installation directory under "CAESES...\etc\features\features\Maritime".
To add a line that follows the topdeck, my solution was to create an image curve from the hull's surface/brep upper edge.
I hope that solves your problem. If not, don't hesitate to ask.
Linesplan_edited.fde