Just like in MediaMonkey - which accompanied by this great remote controlling web interface thingy should be your favorite mediaplayer of all times forever and ever - the "Now Playing" screen shows you the current playlist.
The options menu at the top allows basic rediting of the playlist.
"Clear playlist"...guess what that does.
"Edit list" let's you remove songs from the list.
"Reorder list" let's you...you guessd it...reorder the songs in the list by simply dragging and dropping rows to the desired order.