The program includes a limited "help" feature, driven by the program’s keyword table.
In response to "?", the verb keywords are displayed. In response to "verb?", all the operand keywords of that verb are displayed. For "verb operand(?)" a short description of the value expected for that operand is displayed. When a command containing "?" is entered, no DYNALLOC SVC is issued. "?" is recognized only in the positions specified above; the rest of the command is ignored.