With “Duplicate Sheets”, you can quickly duplicate all selected (or grouped) sheets.
To duplicate sheets, follow the steps below:
After selecting the sheets you want to duplicate, you can quickly access the Duplicate Sheets function by right-clicking on any of the sheet tabs. A short-cut menu will pop up, with the item “Duplicate Sheets” for you to choose. (Actually, you can access almost all the Excel Power Expander functions from short-cut menus.)