Thank you very much. :)

Ihor Radchenko <yantar92@posteo.net> writes:

> Sébastien Gendre <seb@k-7.ch> writes:
>
>> That exactly what I was searching for. 
>>
>> Is it possible to fix the size of the new window ?
>> When it open a habit task, because of the logbook, the new window is soo
>> big that it make the agenda no more visible.
>
> You can configure everything via `display-buffer-alist'.
> Here is an example entry I use for *Warnings* buffer:
>
> ("\\*Warnings\\*" display-buffer-at-bottom (window-height . 0.3))