How can align tags of Cable trays with the same location but different elevation?

dynamo

#1

I have been working on this project with the huge cable tray, so I have to tag them on the plan views and it took me a lot of time to finish manually. I think Dynamo can help me do this task automatically and perfectly.
First I decide to simulate points on Dynamo with straight column,after that i’ll select the tag i wanna access. But I hit the rock cause i’m beginner and don’t know a lot.
By the way, can you give me some advice to over it?