If you're seriously asking, then unlikely from the tech we currently have, and probably from tech we might have in the future also. We still understand very little about DNA despite studying it for many decades now.
I mean, we know the general rule about it, but the specific like which part of DNA is doing what is pretty unknown and takes many yeas to understand just a tiny part of it.
And the crux of it all is that, so far, one part isn't responsible for one single thing; so, it'll never be as easy as turning this part off and everything is fine and dandy. By turning that part off, some weird shit will also happen somewhere else. Like, eye color is not govern by 1 part of the gene, but maybe 3 different parts; and turning all 3 off might get you the desired eye color, but then your taste bud might just acting weird all of a sudden because 1 of those 3 happens to govern it, too, somehow.