library#auto-dj-automate-your-mix - 1

2.4 manual
https://manual.mixxx.org/2.4/en/chapters/library#auto-dj-automate-your-mix
in
The :guilabel:`Skip track`, :guilabel:`Add Random` and :guilabel:`Fade now` buttons are only accessible if the Auto DJ mode is enabled. 
Remplace by icons
:guilabel:`Skip track, :guilabel:`Add Random` and :guilabel:`Fade now`