Just take a look at SAM Project and DRA-GEN-SYSTEM file.
You have to call your Template DRWG and SHEE elements with a specific Prefix so that Draft will automatically recognize them.
That's it!
Thanks for that it makes a bit of sense now - Pdms is like a big puzzle and im getting little bits but making a bigger picture each time so thanks for that
I did not realise that you could make it up from bits and pieces but i understand now :)