menu of ltk

Hi everyone. I have a question. There is check button and radio button in Tcl/Tk8.4 in menu. is there check button and radio button in menu widget of LTK? I looked ltktest in ltk.lisp source code. I found make - menu and "make-menubutton". Furthermore I found "add-separator". Is there a check button or radio button in the same way? Please Tell me this code.