To create or edit a form or report, you must be the only user in the
database. This is why most of us here use a Front-End/Back-End setup. The
BE holds only the tables and the FE holds everything else with the tables
Linked. This allows you to use an Off-Line copy of your application to make
your changes while others are using the database. When you are ready to
deploy your changes, you simply copy your off-line copy over the production
copy.