don't know if anyone is using with the sg2100 but you might can set up the Favorite channels and use it to change satellites .....just a thought... If you do use a " Horizontal transponder" when possible, it will move faster
If using USALS , Have you entered your LONG and LAT , and satellite position, hit save and then enable the USALS function on another Sat and GOTO, if you don't have TP's or Frequencies stored you then can scan that sat.
Not familiar with Samsung , but I have now played with 3 different receivers and found that they are pretty similar. Good Luck