Maybe try this instead (you added the symbol as a list, not just a symbol):
123 #+BEGIN_SRC emacs-lisp (add-text-properties 1 3 '(invisible hide-this-stuff)) (add-to-invisibility-spec 'hide-this-stuff) #+END_SRC #+RESULTS: : (hide-this-stuff (org-hide-block . t) (org-link) (outline . t) t) #+BEGIN_SRC emacs-lisp (remove-from-invisibility-spec 'hide-this-stuff) #+END_SRC #+RESULTS: : ((org-hide-block . t) (org-link) (outline . t) t) John ----------------------------------- Professor John Kitchin (he/him/his) Doherty Hall A207F Department of Chemical Engineering Carnegie Mellon University Pittsburgh, PA 15213 412-268-7803 @johnkitchin http://kitchingroup.cheme.cmu.edu On Thu, Jan 6, 2022 at 5:48 PM Enrico Flor <enr...@eflor.net> wrote: > In a minor mode I wrote for myself, I use add-text-properties to make > certain things invisible. This does not work in org-mode, and I don't > understand why. For instance, the following has no effect in when the > buffer is in org-mode (and only when it's in org mode): > > (add-text-properties 1 3 '(invisible t)) > > Any other text property I try to add does not give me any problem. > I have also tried to achieve the same by adding things to > buffer-invisibility-spec, but again, the following has no effect > whatsoever, if in org-mode: > > (add-text-properties 1 3 '(invisible hide-this-stuff)) > (add-to-invisibility-spec '(hide-this-stuff)) > > Can anyone give me a hint as to what is going on? > > Thank you. >
