Mixer on second display?

I am totally new to Logic but I am an experienced DAW user comming from Ableton Live and Presonus studio one. I have searched the forum here but did not find any so

I have a big external display connected via hdmi to my Retina MacBook Pro.

I have set it up as a separat display in system settings and I can drag for example the preference window in Logic Pro X to that external screen.

But I can't figure out how to get the mixer to that external display.... ;o(

I thought I just should drag the window over but that seems impossible. Does anybody have a hint for me?