I was using
QGIS version 3.20.2Odense
for this video.

Hello everyone. If you never saw the videos of Qchainage plugin, you should probably watch those if you don't about Qchainage yet.
The links are below:
1.Qchainage pt1:    • QGIS Basic #94: QChainage pt.1  
2.Qchainage pt2:    • QGIS Basic #95: QChainage pt.2  

In this video, I am not delving into Qchaninage it self, but a solution to a problem for viewer for reversing the chainage. The viewer already knows about Qchainage so I didn't deep dive on this video. #QGIStutorials #QGISanswers #GISapplications in civil engineering #GISagricultureapplication in #globalinformationsystems #global information technology