There's a way to do the LED part (sort of), but I don't think the PressButton example can be done.

Place these macros at the beginning of the program.
Code:
@LedOn  macro
  GPIO.1=1
@ endm

@LedOff  macro
  GPIO.1=0
@ endm
Then to use them:
Code:
Loop:
@ LedOn    ' Here it turns light on
  Pause 1000
@ LedOff   ' Here it turns light off
  Pause 1000
goto Loop
Not exactly what you were looking for, but it's close.

Best regards,
  Darrel