We - KR BIM Limited believe in better, automated ways of working on Revit and are always happy to help our colleagues. We hope our scripts are useful source for self-learning. Thank you for contacting us and inspiring to write new scripts. This particular one created to answer the question on Dynamo Forum.

https://forum.dynamobim.com/t/tag-all-pipes-without-tagging-vertical-pipes/75327

Use this script to view Horizontal Pipes in a plan view without any overlaps. This script is going to make tagging much easier and help to keep your model clean and smart.

Especially useful for pipe design, safety plans etc.

The script is reading Pipe Curve Vectors location in space in order to distinguish the horizontal ones. (you can select vertical if needed)