here is my goto for the reference station along the alignment. this way you dont have to scroll from the PDF to the alignment.
here is a great way to draw borders and reuse for multiple PDF. this also recognizes distance and move stations as this border uses the alignment and the stations along with a certain width left and right. for this use the Linestring > Boundary. this crops the sheets to the matchline (stations)
Then you will need to goto the project explorer > right click on any of the images from the import files >click on add image boundaries. just click on the page number box and for the clipping boundary click on the associated boundary
