Robert Nikander <robert.nikan...@icloud.com> writes:
> I started reading about “blocks" in the manual. I wanted a chunk of text that > I could hide, so I tried this: > > * Test > Some text > #+BEGIN > Hide this > #+END > > Hitting TAB on the BEGIN line does nothing. But if I add a blank line before > it, > then hitting TAB hides and shows the block. Is that a bug? Or am I doing it > wrong? Seems like it should work without the blank line. > > * Test > Some text > > #+BEGIN > Hide this > #+END > > M-x org-version => 9.5.1. The problem here is that your blocks are not correctly specified. If you run M-x org-lint on your example, it will tell you the blocks may not be correctly specified. You need to tell org what sort of block it is. Org supports a number of different block types, such as source code blocks (#+begin_src/#+end_src), example blocks (#+begin_example/#+end_example), centred blocks (#+begin_center/#+end_center) etc. You can use C-c C-, to run the command org-insert-structured-template to select the block type. If you first highlight the region, it will be wrapped in the block you select.