My understanding of dual instruction training with a flight instructor and a student in a cockpit is, that certain maneuvers, that else would be not permitted, are okay, e.g. simulated engine failure and forced landing on some field (until doing a go-around from 100ft AGL). Is that correct?
For a trained and licensed pilot who currently isn't in training for a new license and just wants to train those things for him-/herself to stay trained, is there a way to do those maneuvers as well without a flight instructor in the cockpit? If that's not possible, does it change, if the single pilot is a flight instructor themselves? Or do they also need to have another flight instructor in the cockpit to train that?