Selects the specified display as the current instruction display. This causes the output of all EXAMINE/INSTRUCTION commands to go to that display. The display specified must be an instruction display. If you do not specify a display, the current instruction display is unselected and no display has the instruction attribute. By default, for all languages except MACRO-32, no display has the instruction attribute. If the language is set to MACRO-32, the INST display has the instruction attribute by default.