1) when you have tested a verified your changes, shut down use of the Master DB.
2) Export records from the Master DB tables in FMP format disk and copy down any auto sequence numbers for each table.
3) make a back copy of this Master and change name to indicate it is back up
4) Delete all records from your Development DB.
5) Import the records from the Master Database, enter all of the auto sequence numbers from Master
6) Start up on new copy.
7) Good luck
Thank you Jim
I appreciate the detailed response.