[Sergey Krotov]

wow!!! Thank you so much Brian for such great and detailed response with c4d files ☺
This is amazing ☺ And i will be pay more attention to the fields now =)) But why if our rail is not the simple curved. In that case i solved the problem with step effector in dragging spline points point by point. But this is so time consuming ☹ its really pity that there is not possible to restrict lenght just picking some object.
Thank you very much. Merry Christmas and Happy New Year =)) Cheers from snowy Russia