@[email protected] You can use `display-buffer-alist` to specify how to
open a new buffer based on the buffer name.

Example :
```
(setq
display-buffer-alist
'(("\\*Help\\*"
(display-buffer-pop-up-frame)
(pop-up-frame-parameters
(width . 80)
(left . 1.0)
(fullscreen . fullheight)))))
```