[O] Questions about using macro replacement

[Joon Ro]

Hi,

I have several questions about macro replacement usage.

1. I saw people using {{{n}}} macros, which looks very useful, but I could not find it in current documentation about macro replacement (http://orgmode.org/manual/Macro-replacement.html). Is this only available in developmental version?

2. I was wondering if it is possible use macro expansion for :EXPORT_FILE_NAME: property of a subtree?

3. Is it possible to create a file link which uses macro? I would like to create a link to the exported pdf file dynamically. For example, if the value of :EXPORT_FILE_NAME: is exported, how would I create a link which automatically link to exported.pdf?

Any help would be greatly appreciated. Thank you!

Joon