(Migrate from ARCHICAD 11 or earlier)
The appearance of each individual Section and Elevation Marker is set in its own Tool Settings Dialog Box. (Place Marker at either or both ends of the S/E line, or place one Marker in the middle.)
The Section/Elevation Marker display option is no longer a Model View Option: any S/E Marker’s appearance will be uniform throughout the project, regardless of which view it is saved in.
When migrating an older-version file in which you used any Section/Elevation Marker Model View Option other than “As in Settings,” you should adjust individual Markers as needed.