change length of section line in plan

[arg617]

Is there a way to change the length of the section line in plan, but still keep a long section?

For instance, I need a section cutting through my building as well as site objects, but don't need to show those site objects in plan. If I clip the plan to not include the site objects I'd end up not being able to see my section marker (since its length matches the extents of the site).

Would this best be done by changing the layer of the section line to not be seen in plan and then somehow adding a "dumb" section line in the plan, or is there another way?

[Laszlo Nagy]

You can do this using a Source Section Marker and a Linked Section Marker.
Place the Source Section Marker and make it as long as you need in the Section View. Then in the Marker panel of the Section Settings Dialog select the Marker Head at the Ends radio button and uncheck the side you don't want to see (e.g. the left side). Also, use the Segmented radio button and leave only the side you want to see (e.g. the right), also define the Section Line Length you want to see.

Now you have one side of it.
Now you can create another Section Line for the other side, but you should select the Linked Marker option for that in the General panel and link it to this Section (this way that Marker will be linked to this Section and will not create another Section Viewpoint).