In AppleWorks 5 for Mac OS and Windows, editing the Master Page of the Business Plan Stationery causes the application to quit.
Other Stationery templates are not affected. To work around this issue, create a new Drawing Document or open a similar template such as the Proposal Generator, copy the objects from the Business Plan, and paste them into the new document. You can then modify the layout, and edit the Master Page of the new document.