tutorial or explanation on Sectioning Tool in micro-station to section contour models.
Hi Peter,
It might be more than what you need, but I found this Youtube playlist helpful in better understanding the Section Callout tool and other related tools/workflows:https://youtube.com/playlist?list=PLEtk-CjYPFGhTZ3jR556pyd0aot7zjfhoThere are individual videos for using all the Detailing tools here (last few videos in the playlist).
Also, here is the official MicroStation help documentation on the Place Section Callout tool:https://docs.bentley.com/LiveContent/web/MicroStation%20Help-v23/en/DraftingPlaceSectionMarker.html