Duplicate Tab into Additional Filtered Tabs

I have a spreadsheet dashboard with all current projects as rows with info about the projects (including the deliverable month) in the columns. I would like to duplicate the dashboard tab onto additional tabs and have the contents filtered to show each month's deliverable projects. I would like these monthly tabs to be editable, where any changes made there are reflected on the dashboard tab (and vice versa). What is the most beginner-friendly way to make this happen?