Feature request: simplify usage of special blocks (for beamer)

[Carlos Pita <carlosjosepita@gmail.com>]

Hi all!

The standard mapping from org structures to beamer structures
introduces boilerplate:

1. At the bare minimum a properties drawer.
2. Then there is the tag.
3. But above all the need to add an ignoreheading subsection (with its
drawer and everything) to introduce a little text between, say, two
definition blocks.

Now, there are special blocks [1] also, and it's a pity they are not
suggested for beamer blocks nor in the org manual nor in the org
beamer tutorial. IMO they are a better fit for simple beamer blocks.
They don't nest, so org headings still have a purpose here for complex
layouts, but they close naturally without the need of
ignoreheading-like tricks, and this covers most cases of practical
importance.

Now, that it's great but the way they take their options is more
clunky than it could be. You need to add a #+ATTR_LATEX: options:...
line above, burying the block title into syntactical noise. It would
be nice it they took their options directly instead, as src blocks do.
For example:

#+BEGIN_definition :options [I'm the definiendum]
I'm the definition
#+END_definition

So my request would be:

1. Allow for special blocks to take an :options argument.

2. Mention the possibility of using special blocks to represent beamer
blocks, be it in the manual or in the tutorial.

Best regards
--
Carlos

[1] https://orgmode.org/manual/Special-blocks-in-LaTeX-export.html