I really cannot bear to memorize so many options' name for Org-mode just like learning English vocabulary. For example:
#+CAPTION for tables,
#+ATTR_HTML: for HTML exporting.
In Org-mode, what I've known to do something similar to this are:
- Block complete: enter
TABto expand to a
#+BEGIN_SRC ... #+END_SRCblock. (or
- Property name complete:
C-c C-x pto insert property.
But, is there any built-in function to aid user to input/complete options?