Often I'll be looking at a section viewport, on a sheet layer, and realise I need to change the position of the section line that generates it.   Doing this is tedious - unless I'm missing some quicker way of doing it.   Many of my section viewports don't have an associated section line on an "active" viewport within the drawing set.   My process is:   - select the viewport - go to the OIP -scroll to the bottom - press "section line instance