How to make "Focus follow mouse" for Dolphin File Explorer?

I use Dolphin file explorer, within which I frequently switch back and forth to the terminal panel. So I was wondering how to make "Focus follow mouse" **within Dolphin**, so that I don't need to click the terminal each time I have to enter something. I am **not asking about a top-level window. I am asking about panes within one window**. Dolphin has two parts an upper pane a graphical file explorer, and a lower pane containing a terminal. I noticed that the terminal panel doesn't register as a separate window, as shown by xprop.