"To be flown using only the automated systems" - Never seen such a note yet!.
You need to check out the RNP-AR approaches that are the latest way to squeeze a jet down a narrow valley in IMC.
They can ONLY be flown by the "automatics". The tech crew cannot fly the aircraft accurately enough to have the ANP remain within the RNP and are just very attentive witnesses to the same ride that pax are getting down the back....until the decision to land or not to land....and if you don't land the "automatics" squeeze you through the valley back to MSA or whatever your country calls it.
If you do land then the next departure will be flown by the "automatics" and squeeze you through the valleys.
Pucker factor 10 I reckon....but its authorised.....at least until the first contact with the granite.