h("Esc    escape from the field \n       (no changes are made)\nReturn end of typing\n       (all correct changes are\n       respected)\n<-     move the cursor to the\n       previous character \n->     move the cursor to the\n       next character\nHome   move the cursor to the\n       first character\nEnd    move the cursor to the\n       last character\nIns    change the typing mode\n       (insert/overwrite)\nDel    delete the given character\nBdel   delete the previous charac\n       ter")
h("Edit    activation of the struc-\n        tural editing\nFiles   enables operations on\n        files\nSetup   enables window resizing\n        and changes of the actual\n        directory\nQuit    exit from the editor\n")
h("F2     resize a window\nEsc    escape to the main menu\nEnter  develop the distinguished\n       field (replace the nonter\n       minal by a new value)\nAlt-a  add a field of the same\n       type after the distin-\n       guished field\nAlt-b  add a field of the same\n       type before the distin-\n       guished field\nAlt-d  delete the distinguished\n       field\nAlt-e  extend the distinguished\n       field to its super-struc\n       ture\nAlt-f  add the first field to\n       the list containing\n       the distinguished field\nAlt-l  add the last field to\n       the list containing\n       the distinguished field\nAlt-m  modify the distinguished\n       field\nAlt-n  narrow the distinguished\n       field to its first sub-\n       structure\nAlt-p  prune the distinguished\n       field (replace the field\n       by a nonterminal)\n")