In it's initial form, you can use it to draw course outlines with bezier curves and then have the program place course objects along the curves at defined intervals. Download the above file and unzip into a suitable folder and read the ReadMe.txt file.
LYTe
LYTe is just what it says, a LaYouT editor for LFS! It is able to open up S2 layouts from AU1, AU2, AU3, AU4 and BL3 for so you can quickly edit all objects on the layout. There are also tools for such things as drawing a line of objects or saving them to a group called a pack. Please check out the screenie, download the program below and experiment.