We are currently optimizing a PPM implementation done by another partner. We want change the current monthly project accounting periods to weekly vs monthly. Currently they are the same as the GL periods. The GL is on a 4-4-5 so weekly pa periods can have the same end date as the Accounting Periods and correspond nicely. However, I can't see where the system allows changes to the Project Accounting Calendar. Has anyone done this before? If so how? Thank you in advance.