How to Duplicate, Move, and Hide Sheets in Google Sheets
If an existing sheet contains information you need in a new sheet, you can duplicate it and save time with data entry.
The selected sheet is moved or duplicated.
It's easy to change the order of sheets in a spreadsheet.
The sheet is moved to a new location.
When you have a spreadsheet that's shared with other people, you may want to hide certain sheets so information isn't visible.
You can also right-click a sheet tab and select Hide sheet from the menu.
Sheets hides the sheet. Keep in mind, this doesn't protect the spreadsheet. Anyone with access to the file can easily unhide the sheet.
If you no longer want the sheet hidden, you can make it visible once again.
You can also right-click any sheet tab and select Unhide from the menu.
The sheet is unhidden.