맨 뒤로

Choose Format - Arrange - Send to Back (LibreOffice Writer, LibreOffice Calc).

Choose Shape - Arrange - Send to Back (LibreOffice Draw).

Shift + + 빼기 기호(-) (LibreOffice Impress, LibreOffice 드로우)

Open context menu - choose Arrange - Send to Back (LibreOffice Impress).