Define a key to execute a DML expression when the key is passed at any INPUT.
Any terminator key that is valid for the %ACTION internal variable.
The given DML expression is interpreted when the key is entered at any INPUT, MENU, PAUSE, or TABLE_EDIT input.
Define_key F20 "Spawn"
! spawn a subprocess when F20 is hit
Define_key F20 /Gold "Idml " & var
! perform the idml program name that is
! contained in 'var' when the Gold F20 key
! is hit.