Sorry if I was unclear. In battlescape, at the bottom corner you can see the selected soldier's weapon: you can "grab" it with your mouse and drag it around. Is this useful somehow?
Second question was if it is possible to throw items other than grenades, like, if a soldier is out of ammo, can another trooper toss a clip his way or is it necessary to drop it, walk away then have the soldier in need walk to that square where he can then pick it up? Can a desperate trooper throw his empty weapon at an approaching alien?