Question about editing master channel

Hello.

I would like to leave the editing panel of the Mastering Channel, which opens clicking “e” button on the master channel of the mixer, on the window until I close it. But it closes whenever I click somewhere else.

By clicking “w” button on the master channel of the mixer to write automation, it creates a new track for the master channel. Then, I can edit there anytime.

But I do not feel comfortable with this. It’s quicker just clicking “e” button.

Is there anybody who knows how this is treated in the latest version of Cubase?

Thank you for your cooperation!