Rewind shouldn't skip to prev. track and scrubbing

Okay, this is a small thing but I like the functionality that most player have where hitting the rewind button one time would cause the track to simply go back to the start, and only if you click rewind button again, then it would skip to the previous track. Right now with Xion, if I want to start teh track from the beginning I have to stop it and play it again.
Also, would it be possible to add (I think it's called) scrubbing, where holding the FF or RW button "plays" the track at a faster speed forward or backwards?
WR
P.S. Also, how about an indicator for volume level, i.e. a numeric one.
Also, would it be possible to add (I think it's called) scrubbing, where holding the FF or RW button "plays" the track at a faster speed forward or backwards?
WR
P.S. Also, how about an indicator for volume level, i.e. a numeric one.