GW Instek GSP-730 Quick start guide - Manual (Page 13)

Input Parameter Values:
Selecting this type of menu key will
allow you to enter a new value with
the numeric keypad or
increment/decrement the value using
the scroll wheel or number pad. See
the parameter input description
below for more details.
Toggle State:
Pressing this menu key will toggle the
state. Notice that any soft-menu key
that can be toggled will have the
active parameter underlined.
Toggle State & Input Parameter:
Pressing this menu key will allow you
to toggle the state of the function
between on and off. When in the on-
state, the parameter value can be
manually edited. Use the numeric
keypad to enter the new value or use
the scroll wheel to
increment/decrement the current
value. Again, the setting that is
underlined is the active setting.
Sub Menu:
Pressing the More menu key will
enter a submenu.
Sub Menu to select parameter
Pressing this type of menu key will
enter a submenu to select a
parameter.