Inserting a new Sheet from a Template into an existing spreadsheet in Google Sheets

I know how to insert a new blank sheet in Google Sheets to an existing spreadsheet, but how do you insert a new Sheet from a Template to an existing spreadsheet document?

For example, if I have a spreadsheet that was created from the "To Do" template, I'd like to add a new sheet to that document using the "To Do" template again, not just a blank sheet.