Is there a way to make a marquee progress bar move from left to right and at the end, it moves backwards from right to left?? So like this.. ■■■□□□□□□□□□□□ then.. □□□□□■■■□□□□□□ then.. □□□□□□□□□■■■□□ then.. □□□□□□□□□□□■■■ then.. □□□□□□□□□□■■■□ then.. □□□□□□□□■■■□□□ then.. □□□□□■■■□□□□□□