Has anyone succeeded in getting openvpn work with pre-shared

how to import a static key to be used at a openvpn client from mikrotik?

I’m using version 6.17 and when I try to import the file .key generated in linux it does not appear. The mikrotik already supports keys generated this way?

http://openvpn.net/index.php/open-source/documentation/miscellaneous/78-static-key-mini-howto.html