Usually the standard TLEs from the internet contain far more satellites than you're interested in. More satellites equals more time to search and more time to predict future passes.
In the VIEW ALL page, each satellite has a checkbox next to it. Check of each satellite you are interested in and click SAVE at the bottom. Now only those satellites that you've selected will be considered when you search and predict future passes. This greatly improves performance.
Note that having no satellites is the same and including them all.
Custom TLE Files
Instead of using a URL as a source of TLEs you can instead upload a file. The file must be a standard ASCII TLE text file and must not contain any headers such as comments or other fluff, eg. it must start with a satellite name. The uploaded file will replace any stored TLEs. The favorites option will work with a custom TLE.
Auto Update TLE
If enabled, the S.A.T. will automatically download a copy of the TLEs from the same url that they were last downloaded from. TLEs will only be downloaded while the S.A.T. is idle. It's also going to check exactly the number of days you enter. If you last downloaded TLEs on Oct 1st at 9am, then it will try on Oct 3rd at 9am. If the S.A.T. is not idle at that exact time it will try when it becomes idle.
You cannot use the custom TLE function with automatic updates. Be sure to disable the automatic updates by entering a zero in the AUTO UPDATE field.
When a satellite sets below the horizon the S.A.T. normally stops tracking the satellite and enters idle mode. This is a safety feature to prevent unintended movement of the rotator. If however, you want to keep tracking you can click the CONTINUOUS button. The button will change to green when enabled. Now when a satellite sets, a new AOS and TOS is calculated and the antenna will move when the satellite reaches AOS. Use caution with this setting.
Rotator & Rig Server
Your S.A.T. is also and Hamlib compatible rotator and rig control server. In this way you can continue to use your favorite satellite tracking program in lieu of the built in tracking of the S.A.T. (This feature has only been tested with GPredict)
In GPredict you can set up the rotator and rig in the interfaces section. The standard ports are enabled by default on the S.A.T., 4533 for the rotator and 4532 for rig. Note that PTT is not yet supported. When tracking with a PC program do not simultaneously track with the S.A.T., confusion will ensue!