-easy-
Set slider tick at 2 your sliders will look nicer.
00:16:352 (1) replace with a note at 00:16:352 , start a slider at 00:16:705 with a reverse arrow at 00:17:058 and that ends at 00:17:411 , a note at 00:17:764 , a note at 00:18:116
(You should first map the whole map before you submit it)