Upgrading Rooms And reservations

How to upgrade room and reservations database based on R5 resource database? I have upgraded the Dominoserver to R8.5

Can I follow the instructions below for the template upgrade, or do I have to do this upgrade in several steps, from version 5 to version 6 at first?

How to upgrade the R&R database from a Domino 6 to a 7 or 8 release

http://www-01.ibm.com/support/docview.wss?rs=475&context=SSKTWP&context=SSKTMJ&context=SSRNU3&context=SSRNUY&dc=DB560&dc=DB520&uid=swg21363903&loc=en_US&cs=utf-8&lang=en

rgds, Kenneth