To register private property (ie vehicles, equipment etc) on the PPSR, the PPSR website provides excellent instructions, or watch a couple of many videos available. Just do a search eg. “How to register a vehicle on the PPSR”.
According to the PPSR, real property (land) can not be registered on the PPSR.
PPSR instructions:
Youtube video PPSR Explained by Bill Turner student: https://youtu.be/myG7kna0vuU?si=bNpL3EZm4TC-uuaL
Instructions from the PPSR website: https://www.ppsr.gov.au/registering/getting-started/create-secured-party-group-spg