How to unsplitting entity from a curve ?

I am trying to unsplit one entity but the system says. "Sketch endpoints and center points cannot be deleted unless the endpoint is a split point of a curve."

Those are the steps;
Insert a XYZ curve from a txt file
Create a new sketch and copy entity from that curve
Insert a split point
Unable to remove that point.

4 Answers

My system says: "You are lucky man! Get what you want!"

File attached !

Tell me the witchery ! I am almost getting bold with that solution ! :-P