If you have to generate schedules for a telescope (or anything else) and are interested in streamlining the process, we recommend the software developed at NASA Goddard by the Science Goal Montior (SGM) group. The main website can be found here and you can download the specific software developed for SMARTS here. Email Michelle Buxton if you need help with creating the specific sun and moon files needed (this is currently done using another piece of software, XEphem).