How do you play ATLauncher on Minecraft?

2:456:36How to play modpacks with the ATLauncher – YouTubeYouTubeStart of suggested clipEnd of suggested clipClick add and then when it asks to switch to the account click yes it should now load your accountMoreClick add and then when it asks to switch to the account click yes it should now load your account and it’ll show your skin if you have one and switch it at the bottom of the launcher.