Oscillator of ocn nmc FL nrp arrow alert (new)

Mr Mladen / Mr Tools / Mr Mntiwana - I have a request. In this indicator

1) An up arrow appears when the oscillator crosses 30 from bottom
2) A down arrow appears when the oscillator crosses 70 from top

I also need...

1) An up arrow when the oscillator crosses 70 from bottom
2) A down arrow when the oscillator crosses 30 from top

Kindly modify

Regards

ARSD