Assuming that the mind is a complex set of physically interacting systems operating on causal principles: it should be possible in theory to alter any moment to moment lived experience with:

1. A thorough understanding of those interacting systems and principles
2. Tools with fine enough effective resolution to precisely influence the physical mechanisms in question

So, maybe. But with that kind of tech I think we're opening an entirely new set of pandora's boxes, ie the ability to start directly hacking our own minds. I'm not against opening that box, but it does scare me.