Thanks guys, problem sovled!

If its too complicated for you, than first learn more about functions, and Lua than look in to that

Yeah.. I guess... I dont know how other people scripting, but factorio lua wiki has some outdated articles.

Awesome mod, I am big fan of it. Can you make it to 0.13 or 0.14 version?

Nexela wrote:take a look at how farl does it in farl.lua (search for cruise to get all the relevant stuff)

I did! But can't understand that, too complicated. I thought maybe i can make it easier, from some simple event, not going crazy-hard-coding way

I tryed to find any usefull information to how make it correct using .acceleration etc. But can't understood how it works.
So I want to make the train with player inside going by itself on cruise speed, which can be add by button "W" to max and "S" to min. Any ideas or suggestions please. Thanks ...