Hello, how can I add <TAB> expansion on R command line for own S4 classes? setClass(Class="A", representation=representation(slotA="numeric", slotB="numeric")); setMethod("$", "A", function(x, name) {return(slot(x, name));}) a <- new("A", slotA=1, slotB=2) a$ <TAB> > a$ should become: a$ <TAB> > a$slotA a$slotB Kind regards, Sebastian