You're welcome. What I do to find stuff like this easily is I've downloaded the .pdf version of the manual on my computer. When you use that, there is a "find" feature which is kind of like a search field. It really only works for one word, so I put in "mirror" then just keep hitting the forward arrow, and it will bring up the word "mirror" on each page that is appears. Makes for finding stuff pretty easy.
Actually I didn't realize the mirror locks up with the 2 second timer (does not with the 10 second) so I learned something valuable through this also.
Operation Manuals Download : Support & Service | PENTAX RICOH IMAGING