change username inside Minecraft java launcher

Dear devs, I have changed my username many times in the past because I just wasn't satisfied with the present username, and I find it quite a hassle to go to the mojang site and then changing our username. It's just more convenient changing it directly in the java launcher like skins. Add like a 'change username' option in the launcher screen so that when we click it it directly just asks us to change the username without going to the mojang site. And I would find this very convenient because I have tried to change my username in the mojang site a few times and I find it quite irritating. Hope you bring this feature Yours sincerely, A regular minecraft user