I'd like to back on this request. Shredder chess supports one-click move perfectly IMHO. E.g. if only Rh1 can move to h8, just click on h8 - no need to shift your pointer to h1 before. Quite convenient if for example multiple exchanges happen. If more than one piece can move you need to do a second click of course. Also if a piece only has one legal move just click on that piece and done.