spacing bar between starting point and end point

in source files that i download rolling ball from one point to another doesn't show the  bar between the point its difficult to understand what happens with the spacing while changing the graph editor please help me how do i get the spacing  bar in downloded files 
  • Wayne Dixon replied

    Hi Muskan,
    Sadly the developers removed that feature from Blender from version 2.8 onwards.
    If you still wanted to play with that file in the same way, you will need to download 2.79.  That feature is still available in that version.