Appending or Automated New Sheets

While using the Google Sheets export (specifically the scheduled exports) it would be helpful to have the option to append rather than overwrite or automatically create a new sheet.

The situation I have now and imagine to be fairly common is a monthly report in which we want to track both historic and current for a live calculation. For now I can simply do manual exports each month where I create a new sheet each time. Ideally though I can set it to be created automatically where each month the new calculations are appended to the bottom of the current sheet. Or having it create a new sheet with the title of the report + something like the date for each scheduled export.