Soft keys: 'soft_keys' (in SURVO.APU) defines the edit field and the list of default soft keys (buttons) appearing below the SURVO MM main window. Typical setting is soft_keys=SUR_SOFT,A,SUR-SOFT,A where the two first parameters refer to the Finnish version and two last to the English version of soft buttons. The edit fields (SUR_SOFT,SUR-SOFT) are in the SURVO MM main program directory (<Survo>\U) and the various lists of soft buttons (as A above) are defined in these edit fields. More information is found by studying SUR_SOFT.EDT (or SUR-SOFT.EDT). During the Survo session, rows of visible soft buttons can be changed by SOFTKEYS <edit_field>,<name_of_list> command. This command is typically activated by sucros controlling soft button applications. In certain applications the soft buttons may become invisible. To refresh the original setting defined by 'soft_keys' in SURVO.APU, press the alt-F1 key or activate SOFTKEYS (without parameters). (F2 alt-F1 makes the soft buttons invisible).