I need something like "schedule.entries[nr].pos" to be able to get the exact position of tile selected.
(http://files.simutrans.com/index.php/apps/files_sharing/ajax/publicpreview.php?x=1440&y=372&a=true&file=coord_sch.png&t=C9i48uO9FTGEWBu&scalingup=0)
schedule.entries[nr] is inherited from coordinates. You can work with it as if it were a 3d coordinate. E.g., it has member variables x,y,z as in schedule.entries[nr].x.
Thank you, I did not know that. :)