If u place a picnictable ond turn it with the orientationkey. there is a Little arrow. that arrow has to be in around 4m to your wished path. U can place a picknicktable on a path and then delete the path. the tables stays. Put the new path near where the arrow of the table was or put 2m path around 
(other tut from me). If u put that ne atract People item the People ignore the path even more to take a shortcut (seem to be a bug).
(other tut from me). If u put that ne atract People item the People ignore the path even more to take a shortcut (seem to be a bug).