Dear r-hackers, I want to split my screen into four screens (like split it do in Rgui). To get this I do the following: Window1 <- tktoplevel() Window2 <- tktoplevel() Window3 <- tktoplevel() Window4 <- tktoplevel() How can I position this windows on my screen. The help-site on activstate says that I can use the command Tk_MoveResizeWindow(tkwin, x, y, width, height). But no command like tkMoveResizeWindow exists in R. I try the command tkmove() but found no documentation (tkmove(Window, x=xx,y=yy) doesn't work). Can you help me? Thanks a lot Thomas Ps: don't look at my english. It is terrible. Sorry, my first mail was a mistake.