I'm using Org mode with Emacs and exporting to PDF. I want to hide bullet points in my export.

* Recommandations (bullet to be hidden)
  some text or src_comment headers

* Title1
** Subtitle1
   :PROPERTIES:
   :UNNUMBERED: t
   :END:

Could you please advise on how to achieve this? I tried using :HIDDEN: t by chance but it didn't have any effect. Additionally, is there an exhaustive list of properties available? I couldn't find any information regarding "UNNUMBERED," for example. Thank you!