You can now use workflows to easily change your Project Date's calendar.
When editing your workflow, create a new "Action" step:
Next, in the dropdown select "Change Calendar":
You can assign this step to complete automatically or have it set to "approve before changing," which allows you to confirm you want to make the change before it occurs.
Feel free to reach out via Live Chat if you still have any remaining questions and we'll be happy to help out!
Keywords: workflows, workflow, wf, calendar, change calendar, switch calendar, project date