alignments

Hello All, I imported a polyline into my LS and unfortunately the stationing is backwards to my CAD drawing/data. Is there an easy way to swap the start/end stationing numbering sequence? Thank you for any help! Hugh

I do a fair amount of construction staking, but haven't used the LS for staking alignments with vertical profiles or cross sections, so I have zero experience with that part of the LS I've been successful at importing an alignment with an associated vertical profile (.xml file from Civil3D)...