[shinseiryu]

you just set up the GUI_;auncher is how. MMominion removes the restriction on how many ffxiv clients you can open.

By adding accounts into the GUI Launcher and launching them from there?
If so, is there a way to do it without entering the password and also I use a onetime password. But still be able to launch the extra clients?

Just launch a session normally, use the GUI Launcher to attach to that session. Then open another session and attach again, and repeat this for however many sessions you want to do.

It's easier to use the GUI launcher to start the sessions but cannot use one-time passwords.