pastes the content of the clipboard into a block selection of the grid
myGrid.attachEvent("onKeyPress",onKeyPressed);
...
function onKeyPressed(code,ctrl,shift){
    if(code==67&&ctrl){
        myGrid.setCSVDelimiter("\t");
        myGrid.copyBlockToClipboard();
    }
    if(code==86&&ctrl){
        myGrid.pasteBlockFromClipboard();
    }
    return true;
}