Adding files in playlist like Winamp
 

I noticed that when BSP playlist is at the bottom, then if add a file in the playlist, it automatically returns to the top, which is annoying as I have to return to the bottom to select and launch the last file I just added, whereas its playlist should stay at the bottom just like when you enqueue a file in winamp playlist.

I also wish that like in Winamp playlist, we could drag and drop a file in an exact position anywhere in bsplayer playlist, for instance directly at the top or somewhere in the middle between two other files.

For the first part of your request I agree with you, but for the drag&drop function you are already able to drag&drop single items wherever you want in the playlist. The only thing that is not possible (at least not in latest releases) is to select multiple files and drag&drop them all, since when you drag the selection only the first item in list will be dropped in the choosen position