You can't have it both ways. Either you fly four lines, and you can brake and stall, move sideways and whatnot, as well as throw and spin...or you fly two lines, and you can explore slack line 'tricks'.
Throws and catches are just so, well, 'indoor', and really NOT slack line tricking in the pure sense of the term by my reckoning (except that your lines are slack while you are HOLDING the kite in your hands).
However, since I haven't done a darn thing for the wiki here...I'll keep out of this officially (minus the above comment).
(Still I will give you props for having the enthusiasm to make your vids and contribute to the little cyber communities.)
"When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return." L daVinci