I show on the movie, what is proposed by Dean or Bud. Lines do not have to touch, one to second of them to extend in the way, what you want. Swf file you can open in your web browser. I'm sorry if this is still not what you mean.
TC Pro 2016, TC Pro 2018, TC Plat 2019
Laptop Asus i7 6500U, dual-core 2,50GHz, NVIDIA GeForce GTX 950M, RAM 12 GB, SSD 480GB
Windows 10 64 bit