To change this behavior on all of your installed calculators you need to edit the KJESiteSpecific.js file and add GRAPH_OPEN parameters. Set this parameter to true to have them default open and false to default close. The first graph is controlled by GRAPH_OPEN1, the second by GRAPH_OPEN2, etc. The lines below would default the first three graphs to be open:
If a calculator had only two graphs, GRAPH_OPEN3 would be ignored.
You can also control the behavior of the graphs on a calculator by calculator basis by adding the code above to a specific calculators PARAMS file. For example, for the Mortgage Loan Calculator you would add these lines to the MortgageLoanParams.js file.