can anybody using Bentley map select series 4 help with datum files

We in Australia will be soon required to use MGA2020 for cadastral survey, but this datum selection is not available to me in MicroStation V8i ss4.

I've been told it is available in Bentley Map SS4 which we don't have .. If it is could somebody copy and post or PM me or email me the necessary files that I could copy  intoMicroStation V8i ss4. as if it was a custom datum.

We don't have map and wont  move to CE for a while yet as the local DOT here haven't adopted CE yet  and not updated all their standards and templates...