RouterOS as OpenVPN client

Hello,
currently my company use some boards with openwrt and openvpn (as client), we are planning to switch our board to routerboard 411.
Last week we bought an RB411U but we have some problems porting in the currently vpn configuration. How we can specify both user and server certificate? and the key?
This is the openvpn client config file used with openwrt:

config 'openvpn' 'mycompany'
	option 'float' '1'
	option 'client' '1'
	option 'comp_lzo' '1'
	option 'reneg_sec' '0'
	option 'dev' 'tun'
	option 'persist_key' '1'
	option 'remote_cert_tls' 'server'
	option 'ca' '/lib/uci/upload/cbid.openvpn.mycompany.ca'
	option 'cert' '/lib/uci/upload/cbid.openvpn.mycompany.cert'
	option 'key' '/lib/uci/upload/cbid.openvpn.mycompany.key'
	option 'dev_type' 'tap'
	option 'enable' '1'
	option 'up_restart' '1'
	option 'remote' 'myremote.ip'
	option 'port' 'myremote.port'
	option 'proto' 'tcp'
	option 'cipher' 'BF-CBC'
	option 'pull' '1'

Don’t switch from OpenWRT to routerOS for OpenVPN!
Read this forum, MT dropped OpenVPN support (missing features, no further development).