Filter Setting to All Boards At Once

Hi Senior User,

For senior team’s overview visibility, I am using the dashboard linking to 8 small boards to the the monthly project changes as attached image below.

Current Issue
We do have the automation column [Project Start Date]. I would like to show the latest 3 months projects. At present, we need to do the filter individually for [Project Start Date]. Is there any way to set the filter to all boards at once?